United States lighthouse districts
E69610
The United States lighthouse districts were regional administrative divisions used to manage, maintain, and oversee lighthouses and other navigational aids along U.S. coasts and waterways.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Coast Guard districts | 1 |
| United States aids to navigation system | 1 |
| United States lighthouse districts canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T540673 — 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: United States lighthouse districts Context triple: [United States Lighthouse Service, hasJurisdictionOver, United States lighthouse districts]
-
A.
United States Lighthouse Board
The United States Lighthouse Board was a 19th-century federal agency that modernized and oversaw the construction, maintenance, and operation of lighthouses and other navigational aids along U.S. coasts and waterways.
-
B.
United States Lighthouse Service
The United States Lighthouse Service was a former U.S. federal agency responsible for the construction, maintenance, and operation of lighthouses and other navigational aids before its functions were absorbed into the Coast Guard.
-
C.
United States Life-Saving Service
The United States Life-Saving Service was a federal agency that operated coastal rescue stations and crews dedicated to saving lives and ships in distress along U.S. shorelines in the 19th and early 20th centuries.
-
D.
United States Coast Guard
The United States Coast Guard is a U.S. maritime security, search and rescue, and law enforcement service responsible for safeguarding the nation’s coasts, waterways, and maritime interests.
-
E.
United States Coast Guard Auxiliary
The United States Coast Guard Auxiliary is the volunteer uniformed civilian component of the U.S. Coast Guard that supports its missions through boating safety education, vessel safety checks, and operational assistance.
- 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: United States lighthouse districts Target entity description: The United States lighthouse districts were regional administrative divisions used to manage, maintain, and oversee lighthouses and other navigational aids along U.S. coasts and waterways.
-
A.
United States Lighthouse Board
The United States Lighthouse Board was a 19th-century federal agency that modernized and oversaw the construction, maintenance, and operation of lighthouses and other navigational aids along U.S. coasts and waterways.
-
B.
United States Lighthouse Service
The United States Lighthouse Service was a former U.S. federal agency responsible for the construction, maintenance, and operation of lighthouses and other navigational aids before its functions were absorbed into the Coast Guard.
-
C.
United States Life-Saving Service
The United States Life-Saving Service was a federal agency that operated coastal rescue stations and crews dedicated to saving lives and ships in distress along U.S. shorelines in the 19th and early 20th centuries.
-
D.
United States Coast Guard
The United States Coast Guard is a U.S. maritime security, search and rescue, and law enforcement service responsible for safeguarding the nation’s coasts, waterways, and maritime interests.
-
E.
United States Coast Guard Auxiliary
The United States Coast Guard Auxiliary is the volunteer uniformed civilian component of the U.S. Coast Guard that supports its missions through boating safety education, vessel safety checks, and operational assistance.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
administrative division
ⓘ
maritime administration system ⓘ |
| appliesTo |
buoys
ⓘ
fog signals ⓘ lighthouses ⓘ lightships ⓘ other navigational aids ⓘ |
| appliesToArea |
Atlantic coast of the United States
ⓘ
Great Lakes ⓘ Gulf Coast of the United States ⓘ
surface form:
Gulf of Mexico coast
Pacific coast of the United States ⓘ major U.S. rivers and inland waterways ⓘ |
| basedOn |
geographic coastline segmentation
ⓘ
navigational traffic patterns ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| documentedIn |
United States Lighthouse Service records
ⓘ
annual reports of the Lighthouse Board ⓘ |
| endTime | 20th century ⓘ |
| followedBy |
United States Coast Guard
ⓘ
surface form:
United States Coast Guard aids to navigation organization
|
| governedBy | Lighthouse Board ⓘ |
| hasJurisdictionOver | federal aids to navigation in assigned region ⓘ |
| hasLegalStatus | federal administrative structure ⓘ |
| hasNumberOfSubdivisions | 12 ⓘ |
| hasPurpose |
centralized record-keeping for aids to navigation
ⓘ
efficient allocation of maintenance resources ⓘ standardization of lighthouse operations ⓘ |
| hasSubdivisionsCalled | lighthouse districts ⓘ |
| operatedBy |
U.S. Department of Commerce
ⓘ
surface form:
United States Department of Commerce
United States Department of the Treasury ⓘ |
| partOf | United States Lighthouse Service ⓘ |
| precededBy | individual port-based lighthouse administration ⓘ |
| regulates |
characteristics of lights and signals
ⓘ
construction of new lighthouses ⓘ discontinuance of obsolete lights ⓘ |
| reorganizedInto |
United States lighthouse districts
self-linksurface differs
ⓘ
surface form:
Coast Guard districts
|
| replacedBy |
United States Coast Guard Aids to Navigation Team
ⓘ
surface form:
United States Coast Guard aids to navigation system
|
| startTime | 19th century ⓘ |
| supervisedBy |
civilian engineers
ⓘ
naval officers ⓘ |
| usedFor |
inspection of lighthouses
ⓘ
maintenance of lighthouses ⓘ management of lighthouses ⓘ oversight of lighthouse keepers ⓘ regional administration of aids to navigation ⓘ |
| uses |
district engineers
ⓘ
district inspectors ⓘ |
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: United States lighthouse districts Description of subject: The United States lighthouse districts were regional administrative divisions used to manage, maintain, and oversee lighthouses and other navigational aids along U.S. coasts and waterways.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
United States aids to navigation system
United States lighthouse districts
→
reorganizedInto
→
United States lighthouse districts
self-linksurface differs
ⓘ
this entity surface form:
Coast Guard districts