Port of Duluth-Superior
E73620
The Port of Duluth-Superior is a major Great Lakes and inland seaport complex handling bulk cargoes such as iron ore, coal, and grain, serving as a key transportation hub for the Upper Midwest.
All labels observed (11)
How this entity was disambiguated
This entity first appeared as the object of triple T587272 — 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: Port of Duluth-Superior Context triple: [Duluth, hasPort, Port of Duluth-Superior]
-
A.
Port of Marquette
The Port of Marquette is a commercial harbor on Lake Superior that serves as a key shipping point for bulk commodities in Michigan’s Upper Peninsula.
-
B.
Port of Seattle
The Port of Seattle is a major Pacific Northwest seaport and aviation hub that manages cargo and cruise terminals as well as Seattle–Tacoma International Airport.
-
C.
Port of Rochester
The Port of Rochester is a commercial and recreational harbor facility in Rochester, New York, serving as a key waterfront access point on Lake Ontario.
-
D.
Port of Portland
The Port of Portland is a major Pacific Northwest seaport and transportation hub in Oregon that handles international maritime trade, cargo, and regional logistics.
-
E.
Port of Tacoma
The Port of Tacoma is a major deep-water seaport in Washington State that serves as a key hub for international container shipping and trade in the Pacific Northwest.
- 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: Port of Duluth-Superior Target entity description: The Port of Duluth-Superior is a major Great Lakes and inland seaport complex handling bulk cargoes such as iron ore, coal, and grain, serving as a key transportation hub for the Upper Midwest.
-
A.
Port of Marquette
The Port of Marquette is a commercial harbor on Lake Superior that serves as a key shipping point for bulk commodities in Michigan’s Upper Peninsula.
-
B.
Port of Seattle
The Port of Seattle is a major Pacific Northwest seaport and aviation hub that manages cargo and cruise terminals as well as Seattle–Tacoma International Airport.
-
C.
Port of Rochester
The Port of Rochester is a commercial and recreational harbor facility in Rochester, New York, serving as a key waterfront access point on Lake Ontario.
-
D.
Port of Portland
The Port of Portland is a major Pacific Northwest seaport and transportation hub in Oregon that handles international maritime trade, cargo, and regional logistics.
-
E.
Port of Tacoma
The Port of Tacoma is a major deep-water seaport in Washington State that serves as a key hub for international container shipping and trade in the Pacific Northwest.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Great Lakes port
ⓘ
inland port ⓘ port ⓘ seaport ⓘ |
| borderStraddles |
Minnesota
ⓘ
Wisconsin ⓘ |
| cityServed |
Duluth
ⓘ
Superior ⓘ |
| connectedTo |
Atlantic Ocean
ⓘ
Great Lakes–St. Lawrence system ⓘ
surface form:
St. Lawrence Seaway
|
| continent | North America ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| handlesCargoType |
bulk cargo
ⓘ
coal ⓘ general cargo ⓘ grain ⓘ iron ore ⓘ limestone ⓘ project cargo ⓘ salt ⓘ |
| hasFeature |
coal docks
ⓘ
grain elevators ⓘ multiple cargo terminals ⓘ ore docks ⓘ |
| hasHarborType |
artificially improved harbor
ⓘ
natural harbor ⓘ |
| hasTransportMode |
maritime shipping
ⓘ
rail transport ⓘ truck transport ⓘ |
| is |
furthest inland seaport of the Great Lakes–St. Lawrence Seaway system
ⓘ
key transportation hub for the Upper Midwest ⓘ major bulk cargo port ⓘ |
| locatedIn |
Duluth
ⓘ
surface form:
Duluth, Minnesota
Superior, Wisconsin ⓘ |
| locatedOnWaterbody |
Lake Superior
ⓘ
St. Louis River ⓘ |
| operatedBy |
Port of Duluth-Superior
self-linksurface differs
ⓘ
surface form:
Duluth Seaway Port Authority
Superior port authority ⓘ |
| partOf |
Great Lakes–St. Lawrence system
ⓘ
surface form:
Great Lakes–St. Lawrence Seaway system
|
| regionServed |
Iron Range region of Minnesota
ⓘ
surface form:
Minnesota Iron Range
|
| servesRegion |
Midwestern United States
ⓘ
surface form:
U.S. Midwest
Midwestern United States ⓘ
surface form:
Upper Midwest
|
| supportsIndustry |
agriculture
ⓘ
energy production ⓘ iron mining ⓘ steel industry ⓘ |
| waterwayTerminusOf | Great Lakes navigation 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: Port of Duluth-Superior Description of subject: The Port of Duluth-Superior is a major Great Lakes and inland seaport complex handling bulk cargoes such as iron ore, coal, and grain, serving as a key transportation hub for the Upper Midwest.
Referenced by (25)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Duluth–Superior harbor
this entity surface form:
Duluth Seaway Port Authority
this entity surface form:
Duluth Harbor
this entity surface form:
Port of Superior
this entity surface form:
Duluth–Superior harbor
this entity surface form:
Duluth Harbor
this entity surface form:
Port of Duluth–Superior
this entity surface form:
Duluth–Superior harbor area
this entity surface form:
Duluth-Superior port facilities
this entity surface form:
Duluth Seaway Port Authority
this entity surface form:
Port of Duluth–Superior
subject surface form:
Superior Port Authority
this entity surface form:
Duluth–Superior port
subject surface form:
Superior Port Authority
this entity surface form:
Port of Duluth–Superior
subject surface form:
Superior Port Authority
this entity surface form:
Duluth Seaway Port Authority
this entity surface form:
Port of Duluth–Superior
this entity surface form:
Port of Duluth–Superior
this entity surface form:
Duluth Harbor
this entity surface form:
Port of Duluth–Superior
this entity surface form:
Duluth–Superior port terminals
this entity surface form:
Duluth harbor
subject surface form:
Enger Park golf course
this entity surface form:
Duluth harbor
this entity surface form:
Duluth harbor
this entity surface form:
Port of Superior