| gptkbp:instanceOf | gptkb:football 
 | 
                        
                            
                                | gptkbp:common_venues | lakes rivers
 oceans
 open water
 
 | 
                        
                            
                                | gptkbp:distance | at least 10 kilometers 
 | 
                        
                            
                                | gptkbp:equipment | gptkb:swimwear goggles
 grease (for chafing protection)
 swim cap
 
 | 
                        
                            
                                | gptkbp:famous_marathon_swimmer | gptkb:Gertrude_Ederle gptkb:Lynne_Cox
 gptkb:Martin_Strel
 gptkb:Petar_Stoychev
 gptkb:Sarah_Thomas
 
 | 
                        
                            
                                | gptkbp:first_Olympic_gold_medalist_(men) | gptkb:Maarten_van_der_Weijden 
 | 
                        
                            
                                | gptkbp:first_Olympic_gold_medalist_(women) | gptkb:Larisa_Ilchenko 
 | 
                        
                            
                                | gptkbp:governingBody | gptkb:FINA 
 | 
                        
                            
                                | gptkbp:includes | gptkb:Olympic_Games 
 | 
                        
                            
                                | gptkbp:is_a_discipline_of | Swimming 
 | 
                        
                            
                                | gptkbp:notableEvent | gptkb:Catalina_Channel_Swim gptkb:English_Channel_Swim
 gptkb:Manhattan_Island_Marathon_Swim
 
 | 
                        
                            
                                | gptkbp:notableRecording | fastest English Channel swim longest unassisted swim
 
 | 
                        
                            
                                | gptkbp:Olympic_distance | 10 kilometers 
 | 
                        
                            
                                | gptkbp:Olympic_event_format | open water mass start
 
 | 
                        
                            
                                | gptkbp:Olympic_event_gender | gptkb:women men
 
 | 
                        
                            
                                | gptkbp:olympicSportSince | 2008 
 | 
                        
                            
                                | gptkbp:recognizedBy | gptkb:International_Marathon_Swimming_Hall_of_Fame 
 | 
                        
                            
                                | gptkbp:relatedTo | gptkb:Channel_Swimming gptkb:Long_Distance_Swimming
 gptkb:Open_Water_Swimming
 
 | 
                        
                            
                                | gptkbp:requires | endurance navigation skills
 feeding strategies
 
 | 
                        
                            
                                | gptkbp:riskFactor | gptkb:hypothermia marine life
 waves
 currents
 jellyfish stings
 
 | 
                        
                            
                                | gptkbp:training_involves | long-distance swimming nutrition planning
 cold water acclimatization
 
 | 
                        
                            
                                | gptkbp:bfsParent | gptkb:Summer_Olympics_2028 
 | 
                        
                            
                                | gptkbp:bfsLayer | 6 
 | 
                        
                            
                                | https://www.w3.org/2000/01/rdf-schema#label | Marathon Swimming 
 |