Duluth Ship Canal
E361223
The Duluth Ship Canal is a man-made waterway in Duluth, Minnesota, that provides access between Lake Superior and the Duluth–Superior Harbor for large commercial and recreational vessels.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Duluth Ship Canal canonical | 5 |
| Ship Canal (Duluth Ship Canal) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3486604 — 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: Duluth Ship Canal Context triple: [Aerial Lift Bridge, crosses, Duluth Ship Canal]
-
A.
Sault Ste. Marie Canal
The Sault Ste. Marie Canal is a historic Canadian lock and canal system in Sault Ste. Marie, Ontario, that once formed a key part of Great Lakes shipping and is now a National Historic Site.
-
B.
Keweenaw Waterway
The Keweenaw Waterway is a navigable canal and natural waterway system in Michigan’s Upper Peninsula that cuts across the Keweenaw Peninsula, connecting Lake Superior’s north and south shores.
-
C.
Chicago Sanitary and Ship Canal
The Chicago Sanitary and Ship Canal is a man-made waterway in Illinois that reverses the flow of the Chicago River, diverts wastewater away from Lake Michigan, and serves as a key navigation link between the Great Lakes and the Mississippi River system.
-
D.
Great Lakes waterway
The Great Lakes waterway is a system of natural and artificial channels that enables commercial and recreational navigation between the Great Lakes and the Atlantic Ocean via the Saint Lawrence River.
-
E.
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.
- 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: Duluth Ship Canal Target entity description: The Duluth Ship Canal is a man-made waterway in Duluth, Minnesota, that provides access between Lake Superior and the Duluth–Superior Harbor for large commercial and recreational vessels.
-
A.
Sault Ste. Marie Canal
The Sault Ste. Marie Canal is a historic Canadian lock and canal system in Sault Ste. Marie, Ontario, that once formed a key part of Great Lakes shipping and is now a National Historic Site.
-
B.
Keweenaw Waterway
The Keweenaw Waterway is a navigable canal and natural waterway system in Michigan’s Upper Peninsula that cuts across the Keweenaw Peninsula, connecting Lake Superior’s north and south shores.
-
C.
Chicago Sanitary and Ship Canal
The Chicago Sanitary and Ship Canal is a man-made waterway in Illinois that reverses the flow of the Chicago River, diverts wastewater away from Lake Michigan, and serves as a key navigation link between the Great Lakes and the Mississippi River system.
-
D.
Great Lakes waterway
The Great Lakes waterway is a system of natural and artificial channels that enables commercial and recreational navigation between the Great Lakes and the Atlantic Ocean via the Saint Lawrence River.
-
E.
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.
- F. None of above. chosen
Statements (39)
| Predicate | Object |
|---|---|
| instanceOf |
canal
ⓘ
man-made waterway ⓘ |
| cityServed |
Duluth
ⓘ
surface form:
Duluth, Minnesota
Superior, Wisconsin ⓘ |
| connectsBodyOfWater |
Duluth–Superior harbor and estuary system
ⓘ
surface form:
Duluth–Superior Harbor
Lake Superior ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| crossedBy | Aerial Lift Bridge ⓘ |
| hasAccessRestriction | regulated commercial navigation ⓘ |
| hasAssociatedPort |
Port of Duluth-Superior
ⓘ
surface form:
Port of Duluth–Superior
|
| hasEconomicRole |
supports Great Lakes shipping
ⓘ
supports regional port operations ⓘ |
| hasFeature |
parallel piers extending into Lake Superior
ⓘ
shipping channel ⓘ |
| hasFunction | provides access between Lake Superior and Duluth–Superior Harbor ⓘ |
| hasNavigationAid |
canal piers
ⓘ
lighthouses ⓘ |
| hasRecreationUse |
ship watching
ⓘ
sightseeing ⓘ walking along piers ⓘ |
| hasStructure | Aerial Lift Bridge ⓘ |
| hasTourismAspect | popular viewing area for ship traffic ⓘ |
| locatedIn |
Duluth
ⓘ
surface form:
Duluth, Minnesota
Minnesota ⓘ Port of Duluth-Superior ⓘ
surface form:
Port of Duluth–Superior
St. Louis County, Minnesota ⓘ |
| locatedOnWaterbody | Lake Superior ⓘ |
| near |
Canal Park
ⓘ
surface form:
Canal Park, Duluth
Duluth ⓘ
surface form:
Downtown Duluth
|
| operatedFor |
large commercial vessels
ⓘ
recreational vessels ⓘ |
| partOf |
Duluth–Superior harbor and estuary system
ⓘ
surface form:
Duluth–Superior Harbor
Great Lakes waterway ⓘ
surface form:
Great Lakes waterway system
|
| region |
Lake Superior
ⓘ
surface form:
Western Lake Superior
|
| usedFor |
commercial shipping
ⓘ
harbor access ⓘ recreational boating ⓘ |
| waterwayClass | harbor entrance channel ⓘ |
| waterwayType | shipping canal ⓘ |
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: Duluth Ship Canal Description of subject: The Duluth Ship Canal is a man-made waterway in Duluth, Minnesota, that provides access between Lake Superior and the Duluth–Superior Harbor for large commercial and recreational vessels.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Ship Canal (Duluth Ship Canal)