| 
                                    
                                        gptkbp:instanceOf
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:artillery
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:addedToNationalRegisterOfHistoricPlaces
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:prop
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:built
                                    
                                 | 
                                
                                    
                                        
                                            
                                            1904
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:city
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:San_Francisco
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:country
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:United_States
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:exhibits
                                    
                                 | 
                                
                                    
                                        
                                            
                                            military history displays
                                        
                                        
                                         
                                    
                                        
                                            
                                            restored 6-inch gun
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:features
                                    
                                 | 
                                
                                    
                                        
                                            
                                            gun emplacement
                                        
                                        
                                         
                                    
                                        
                                            
                                            underground magazine
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:historicalSignificance
                                    
                                 | 
                                
                                    
                                        
                                            
                                            defense of San Francisco Bay
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:latitude
                                    
                                 | 
                                
                                    
                                        
                                            
                                            37.8031
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:locatedIn
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:Golden_Gate_National_Recreation_Area
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:location
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:Presidio_of_San_Francisco
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:longitude
                                    
                                 | 
                                
                                    
                                        
                                            
                                            -122.4752
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:namedAfter
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:Captain_Lowell_A._Chamberlin
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:NRHPDistrict
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:Presidio_of_San_Francisco_National_Historic_Landmark_District
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:openToPublic
                                    
                                 | 
                                
                                    
                                        
                                            
                                            yes
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:operatedBy
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:United_States_Army
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:partOf
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:Harbor_Defenses_of_San_Francisco
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:preservedIn
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:National_Park_Service
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:state
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:California
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:weapon
                                    
                                 | 
                                
                                    
                                        
                                            
                                            6-inch disappearing gun
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:bfsParent
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:Crissy_Field
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:bfsLayer
                                    
                                 | 
                                
                                    
                                        
                                            
                                            5
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        https://www.w3.org/2000/01/rdf-schema#label
                                    
                                 | 
                                
                                    
                                        
                                            
                                            Battery Chamberlin
                                        
                                        
                                         
                                    
                                 |