Saint Lawrence Seaway Development Corporation
E4537
The Saint Lawrence Seaway Development Corporation is a U.S. federal agency responsible for operating and maintaining the American portion of the St. Lawrence Seaway, a key commercial shipping route connecting the Great Lakes to the Atlantic Ocean.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Saint Lawrence Seaway Development Corporation canonical | 9 |
| Great Lakes St. Lawrence Seaway Development Corporation | 2 |
| U.S.–Canada maritime trade corridor | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T30688 — 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: Saint Lawrence Seaway Development Corporation Context triple: [United States Department of Transportation, oversees, Saint Lawrence Seaway Development Corporation]
-
A.
Great Lakes Works
Great Lakes Works is a large integrated steel manufacturing plant in Michigan known for producing flat-rolled steel products for the automotive and other industries.
-
B.
Tennessee Valley Authority
The Tennessee Valley Authority is a federally owned U.S. corporation created during the New Deal to provide regional economic development, flood control, and electricity generation in the Tennessee Valley.
-
C.
U.S. Army Corps of Engineers
The U.S. Army Corps of Engineers is a federal agency within the U.S. Department of Defense responsible for designing, building, and maintaining military and civil engineering projects such as dams, waterways, and infrastructure.
-
D.
Erie Canal
The Erie Canal is a historic man-made waterway in New York State that opened in 1825, linking the Great Lakes to the Atlantic Ocean and transforming U.S. commerce and westward expansion.
-
E.
Port of New York and New Jersey
The Port of New York and New Jersey is the largest seaport on the U.S. East Coast and a major global shipping and transportation hub serving the New York metropolitan area.
- 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: Saint Lawrence Seaway Development Corporation Target entity description: The Saint Lawrence Seaway Development Corporation is a U.S. federal agency responsible for operating and maintaining the American portion of the St. Lawrence Seaway, a key commercial shipping route connecting the Great Lakes to the Atlantic Ocean.
-
A.
Great Lakes Works
Great Lakes Works is a large integrated steel manufacturing plant in Michigan known for producing flat-rolled steel products for the automotive and other industries.
-
B.
Tennessee Valley Authority
The Tennessee Valley Authority is a federally owned U.S. corporation created during the New Deal to provide regional economic development, flood control, and electricity generation in the Tennessee Valley.
-
C.
U.S. Army Corps of Engineers
The U.S. Army Corps of Engineers is a federal agency within the U.S. Department of Defense responsible for designing, building, and maintaining military and civil engineering projects such as dams, waterways, and infrastructure.
-
D.
Erie Canal
The Erie Canal is a historic man-made waterway in New York State that opened in 1825, linking the Great Lakes to the Atlantic Ocean and transforming U.S. commerce and westward expansion.
-
E.
Port of New York and New Jersey
The Port of New York and New Jersey is the largest seaport on the U.S. East Coast and a major global shipping and transportation hub serving the New York metropolitan area.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
United States federal agency
ⓘ
government corporation ⓘ |
| appliesToJurisdiction |
United States
ⓘ
linked to:
United States of America
|
| connectsThroughOperations |
Atlantic Ocean
ⓘ
Great Lakes ⓘ
linked to:
Great Lakes–St. Lawrence system
|
| cooperatesWith |
Canadian federal agencies responsible for the Saint Lawrence Seaway
ⓘ
St. Lawrence Seaway Management Corporation ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| foundedBy |
Government of the United States
ⓘ
linked to:
United States government
|
| governedBy | United States federal law ⓘ |
| hasAbbreviation | SLSDC ⓘ |
| hasActivity |
channel maintenance
ⓘ
environmental stewardship related to the Seaway ⓘ ice management coordination ⓘ lock operation ⓘ navigation aid management ⓘ trade facilitation ⓘ |
| hasEconomicRole |
facilitating North American inland waterway trade
ⓘ
supporting export and import of bulk commodities via the Great Lakes ⓘ |
| hasJurisdictionOver | American portion of the Saint Lawrence Seaway ⓘ |
| hasMission | to operate and maintain a safe, reliable, and efficient waterway for commercial shipping ⓘ |
| hasOfficialLanguage | English ⓘ |
| headquartersLocation | Washington, D.C. ⓘ |
| industry |
shipping
ⓘ
water transportation ⓘ |
| isSubjectOf | United States federal transportation policy ⓘ |
| legalForm | federal government corporation ⓘ |
| locatedInAdministrativeTerritorialEntity | District of Columbia ⓘ |
| operatesInSector |
infrastructure management
ⓘ
maritime transportation ⓘ transportation ⓘ |
| ownedBy |
Government of the United States
ⓘ
linked to:
United States government
|
| parentAgency | United States Department of Transportation ⓘ |
| partOf |
Great Lakes–St. Lawrence Seaway System governance structure
ⓘ
United States Department of Transportation ⓘ |
| publicOrPrivate | public ⓘ |
| regulates | commercial vessel traffic on the U.S. portion of the Saint Lawrence Seaway ⓘ |
| responsibleFor |
infrastructure improvements on the U.S. portion of the Saint Lawrence Seaway
ⓘ
maintenance of the U.S. portion of the Saint Lawrence Seaway ⓘ operation of the U.S. portion of the Saint Lawrence Seaway ⓘ safety of navigation on the U.S. portion of the Saint Lawrence Seaway ⓘ |
| serviceArea |
Great Lakes region
ⓘ
linked to:
Great Lakes
Saint Lawrence River ⓘ U.S.–Canada maritime trade corridor ⓘ |
| usesWaterway |
Great Lakes–St. Lawrence Seaway System
ⓘ
linked to:
Great Lakes–St. Lawrence system
Saint Lawrence Seaway ⓘ
linked to:
Great Lakes–St. Lawrence system
|
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: Saint Lawrence Seaway Development Corporation Description of subject: The Saint Lawrence Seaway Development Corporation is a U.S. federal agency responsible for operating and maintaining the American portion of the St. Lawrence Seaway, a key commercial shipping route connecting the Great Lakes to the Atlantic Ocean.
Referenced by (12)
Full triples — surface form annotated when it differs from this entity's canonical label.
United States Department of Transportation
→
oversees
→
Saint Lawrence Seaway Development Corporation
ⓘ
United States Department of Transportation
→
oversees
→
Saint Lawrence Seaway Development Corporation
ⓘ
subject linked to:
DOT
linked to: Saint Lawrence Seaway Development Corporation
linked to: Saint Lawrence Seaway Development Corporation
St. Lawrence Seaway Management Corporation
→
collaboratesWith
→
Saint Lawrence Seaway Development Corporation
ⓘ
Office of the Secretary of Transportation
→
oversees
→
Saint Lawrence Seaway Development Corporation
ⓘ
Office of the Secretary of Transportation
→
oversees
→
Great Lakes St. Lawrence Seaway Development Corporation
ⓘ
linked to: Saint Lawrence Seaway Development Corporation
United States Department of Transportation
→
oversees
→
Saint Lawrence Seaway Development Corporation
ⓘ
subject linked to:
Department of Transportation
United States Department of Transportation
→
hasAgency
→
Saint Lawrence Seaway Development Corporation
ⓘ
subject linked to:
Department of Transportation (initially for TSA)