Cal-Sag Channel
E73438
The Cal-Sag Channel is a man-made waterway in the Chicago metropolitan area that diverts and carries water and barge traffic between the Calumet River system and the Chicago Sanitary and Ship Canal.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Cal-Sag Channel canonical | 6 |
How this entity was disambiguated
This entity first appeared as the object of triple T574130 — 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: Cal-Sag Channel Context triple: [Calumet River, connectsTo, Cal-Sag Channel]
-
A.
Santa Barbara Channel
The Santa Barbara Channel is a narrow stretch of the Pacific Ocean off the coast of Southern California, known for its rich marine biodiversity, offshore oil platforms, and separation of the mainland from the northern Channel Islands.
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B.
Mona Passage
The Mona Passage is a strait in the Caribbean Sea that separates the islands of Hispaniola and Puerto Rico, serving as a key shipping route and a challenging stretch of water for navigation.
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C.
Sealark Channel
Sealark Channel is a marine waterway located off the coast of Sri Lanka’s Central Province in the Indian Ocean.
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D.
Suisun Bay
Suisun Bay is a shallow tidal estuary in Northern California that forms part of the greater San Francisco Bay system and serves as a key confluence for the Sacramento and San Joaquin rivers.
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E.
Contra Costa Canal
The Contra Costa Canal is a man-made waterway in California that delivers irrigation and municipal water from the Sacramento–San Joaquin Delta to communities in Contra Costa County.
- 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: Cal-Sag Channel Target entity description: The Cal-Sag Channel is a man-made waterway in the Chicago metropolitan area that diverts and carries water and barge traffic between the Calumet River system and the Chicago Sanitary and Ship Canal.
-
A.
Santa Barbara Channel
The Santa Barbara Channel is a narrow stretch of the Pacific Ocean off the coast of Southern California, known for its rich marine biodiversity, offshore oil platforms, and separation of the mainland from the northern Channel Islands.
-
B.
Mona Passage
The Mona Passage is a strait in the Caribbean Sea that separates the islands of Hispaniola and Puerto Rico, serving as a key shipping route and a challenging stretch of water for navigation.
-
C.
Sealark Channel
Sealark Channel is a marine waterway located off the coast of Sri Lanka’s Central Province in the Indian Ocean.
-
D.
Suisun Bay
Suisun Bay is a shallow tidal estuary in Northern California that forms part of the greater San Francisco Bay system and serves as a key confluence for the Sacramento and San Joaquin rivers.
-
E.
Contra Costa Canal
The Contra Costa Canal is a man-made waterway in California that delivers irrigation and municipal water from the Sacramento–San Joaquin Delta to communities in Contra Costa County.
- F. None of above. chosen
Statements (45)
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: Cal-Sag Channel Description of subject: The Cal-Sag Channel is a man-made waterway in the Chicago metropolitan area that diverts and carries water and barge traffic between the Calumet River system and the Chicago Sanitary and Ship Canal.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Calumet-Sag Channel