Nickajack Lock
E91928
Nickajack Lock is a navigation lock on the Tennessee River in Tennessee that helps manage river traffic and water levels as part of the Tennessee Valley Authority system.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Nickajack Lock canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T781490 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Nickajack Lock Context triple: [Tennessee River, hasLock, Nickajack Lock]
-
A.
Pesky's Pole
Pesky's Pole is the famously short right-field foul pole at Boston's Fenway Park, named after Red Sox player Johnny Pesky and known for its role in several memorable home runs.
-
B.
Cactus Jack
Cactus Jack was the colorful nickname of John Nance Garner, a powerful early 20th-century American politician who served as vice president under Franklin D. Roosevelt.
-
C.
Martinscroft
Martinscroft is a stop on Greater Manchester’s Metrolink light rail network, located on the Airport Line.
-
D.
Vails Gate
Vails Gate is a small hamlet in New York State known primarily as a residential community within a larger town jurisdiction.
-
E.
Jubilee Pass
Jubilee Pass is a mountain pass in Death Valley National Park, California, known for its desert scenery and as a route connecting the park’s southern approaches.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Nickajack Lock Target entity description: Nickajack Lock is a navigation lock on the Tennessee River in Tennessee that helps manage river traffic and water levels as part of the Tennessee Valley Authority system.
-
A.
Pesky's Pole
Pesky's Pole is the famously short right-field foul pole at Boston's Fenway Park, named after Red Sox player Johnny Pesky and known for its role in several memorable home runs.
-
B.
Cactus Jack
Cactus Jack was the colorful nickname of John Nance Garner, a powerful early 20th-century American politician who served as vice president under Franklin D. Roosevelt.
-
C.
Martinscroft
Martinscroft is a stop on Greater Manchester’s Metrolink light rail network, located on the Airport Line.
-
D.
Vails Gate
Vails Gate is a small hamlet in New York State known primarily as a residential community within a larger town jurisdiction.
-
E.
Jubilee Pass
Jubilee Pass is a mountain pass in Death Valley National Park, California, known for its desert scenery and as a route connecting the park’s southern approaches.
- F. None of above. chosen
Statements (26)
| Predicate | Object |
|---|---|
| instanceOf |
lock and dam structure
ⓘ
navigation lock ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| category |
Locks of the United States
ⓘ
Tennessee River locks ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| hasFunction |
allows vessels to bypass changes in river elevation
ⓘ
regulates navigation pool levels ⓘ |
| isInfrastructureType | hydraulic engineering structure ⓘ |
| locatedInCountry |
United States of America
ⓘ
surface form:
United States
|
| locatedInRegion |
Southern United States
ⓘ
surface form:
Southeastern United States
|
| locatedInState | Tennessee ⓘ |
| locatedInWaterSystem |
Tennessee River
ⓘ
surface form:
Tennessee River watershed
|
| locatedOnWaterway | Tennessee River ⓘ |
| managingAgency | Tennessee Valley Authority ⓘ |
| operator | Tennessee Valley Authority ⓘ |
| ownedBy | Tennessee Valley Authority ⓘ |
| partOf |
Tennessee River
ⓘ
surface form:
Tennessee River navigation system
Tennessee Valley Authority ⓘ
surface form:
Tennessee Valley Authority system
|
| purpose |
navigation
ⓘ
river traffic management ⓘ water level control ⓘ |
| river | Tennessee River ⓘ |
| usedFor |
commercial navigation
ⓘ
recreational boating ⓘ |
| watercourse | Tennessee River ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Nickajack Lock Description of subject: Nickajack Lock is a navigation lock on the Tennessee River in Tennessee that helps manage river traffic and water levels as part of the Tennessee Valley Authority system.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.