Sebasticook River
E430112
The Sebasticook River is a major tributary of the Kennebec River in central Maine, known for its role in regional wildlife habitat and historic mill and dam sites.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Sebasticook River canonical | 5 |
| East Branch Sebasticook River | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1891452 — 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: Sebasticook River Context triple: [Central Maine, hasRiver, Sebasticook River]
-
A.
Annisquam River
The Annisquam River is a tidal waterway in Gloucester, Massachusetts, connecting Ipswich Bay to Gloucester Harbor and popular for boating and scenic coastal views.
-
B.
Kennebec River
The Kennebec River is a major river in central Maine known for its historical role in logging and shipping and its popular whitewater rafting and recreational opportunities.
-
C.
Contoocook River
The Contoocook River is a scenic river in southern New Hampshire known for its northward flow and popular recreational activities such as fishing, paddling, and whitewater boating.
-
D.
Stave River
Stave River is a river in southwestern British Columbia, Canada, known for its hydroelectric dams and as a significant waterway feeding into the Fraser River system.
-
E.
Malden River
The Malden River is a short urban river in the Greater Boston area of Massachusetts that flows through communities including Everett before joining the Mystic River.
- 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: Sebasticook River Target entity description: The Sebasticook River is a major tributary of the Kennebec River in central Maine, known for its role in regional wildlife habitat and historic mill and dam sites.
-
A.
Annisquam River
The Annisquam River is a tidal waterway in Gloucester, Massachusetts, connecting Ipswich Bay to Gloucester Harbor and popular for boating and scenic coastal views.
-
B.
Kennebec River
The Kennebec River is a major river in central Maine known for its historical role in logging and shipping and its popular whitewater rafting and recreational opportunities.
-
C.
Contoocook River
The Contoocook River is a scenic river in southern New Hampshire known for its northward flow and popular recreational activities such as fishing, paddling, and whitewater boating.
-
D.
Stave River
Stave River is a river in southwestern British Columbia, Canada, known for its hydroelectric dams and as a significant waterway feeding into the Fraser River system.
-
E.
Malden River
The Malden River is a short urban river in the Greater Boston area of Massachusetts that flows through communities including Everett before joining the Mystic River.
- F. None of above. chosen
Statements (28)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| country |
United States of America
ⓘ
surface form:
United States
|
| flowsThrough | rural areas of Maine ⓘ |
| hasEcosystemRole |
bird habitat
ⓘ
fish habitat ⓘ |
| hasEnvironmentalSignificance | important wildlife corridor ⓘ |
| hasFeature |
dams
ⓘ
mill sites ⓘ wetlands ⓘ |
| hasHistoricalSignificance |
industrial development in central Maine
ⓘ
water power for mills ⓘ |
| hasUse |
recreation
ⓘ
wildlife habitat ⓘ |
| knownFor |
historic dam sites
ⓘ
historic mill sites ⓘ regional wildlife habitat ⓘ |
| locatedIn |
Maine
NERFINISHED
ⓘ
New England ⓘ central Maine ⓘ |
| mouthLocatedIn | Maine NERFINISHED ⓘ |
| mouthLocation | Kennebec River NERFINISHED ⓘ |
| partOf | Kennebec River watershed NERFINISHED ⓘ |
| riverSystem | Kennebec River NERFINISHED ⓘ |
| supports |
migratory birds
ⓘ
regional fisheries ⓘ |
| tributaryOf | Kennebec River NERFINISHED ⓘ |
| waterBodyType | freshwater river ⓘ |
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: Sebasticook River Description of subject: The Sebasticook River is a major tributary of the Kennebec River in central Maine, known for its role in regional wildlife habitat and historic mill and dam sites.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Central Maine
this entity surface form:
East Branch Sebasticook River