Songo River
E904856
The Songo River is a waterway in southwestern Maine that connects Long Lake to Sebago Lake and is known for its scenic, recreational boating route.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Songo River canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T10700422 — 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: Songo River Context triple: [Long Lake (Maine), outflowsTo, Songo River]
-
A.
Sumène River
The Sumène River is a watercourse in south-central France that originates in the Cantal Mountains and flows through the Auvergne region before joining larger river systems.
-
B.
Bua River
The Bua River is a major river in Malawi that drains part of the country’s central region before emptying into Lake Malawi.
-
C.
Ngadda River
The Ngadda River is a waterway in northeastern Nigeria that flows through the city of Maiduguri and contributes to the region’s drainage into Lake Chad.
-
D.
Mula River
The Mula River is a major river in the Indian state of Maharashtra that flows through the city of Pune and forms part of its urban river system.
-
E.
Famine River
The Famine River is a smaller watercourse in Quebec, Canada, known primarily as a tributary within the Chaudière River watershed.
- 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: Songo River Target entity description: The Songo River is a waterway in southwestern Maine that connects Long Lake to Sebago Lake and is known for its scenic, recreational boating route.
-
A.
Sumène River
The Sumène River is a watercourse in south-central France that originates in the Cantal Mountains and flows through the Auvergne region before joining larger river systems.
-
B.
Bua River
The Bua River is a major river in Malawi that drains part of the country’s central region before emptying into Lake Malawi.
-
C.
Ngadda River
The Ngadda River is a waterway in northeastern Nigeria that flows through the city of Maiduguri and contributes to the region’s drainage into Lake Chad.
-
D.
Mula River
The Mula River is a major river in the Indian state of Maharashtra that flows through the city of Pune and forms part of its urban river system.
-
E.
Famine River
The Famine River is a smaller watercourse in Quebec, Canada, known primarily as a tributary within the Chaudière River watershed.
- F. None of above. chosen
Statements (39)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| connectsWaterbody |
Long Lake
NERFINISHED
ⓘ
Sebago Lake NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| flowsThrough |
Casco, Maine
NERFINISHED
ⓘ
Naples, Maine NERFINISHED ⓘ Sebago, Maine NERFINISHED ⓘ |
| hasBridge | Naples Causeway NERFINISHED ⓘ |
| hasEcosystemType | freshwater riverine ecosystem ⓘ |
| hasFeature |
freshwater river
ⓘ
narrow, winding channel ⓘ navigable waterway ⓘ |
| hasLock | Songo Lock NERFINISHED ⓘ |
| hasLockType | hand-operated lock ⓘ |
| hasNearbySettlement |
Casco, Maine
NERFINISHED
ⓘ
Naples, Maine NERFINISHED ⓘ Sebago, Maine NERFINISHED ⓘ |
| hasRecreation |
pleasure cruising
ⓘ
wildlife viewing ⓘ |
| knownFor |
historic lock system
ⓘ
popular boating route between Long Lake and Sebago Lake ⓘ scenic views ⓘ |
| locatedIn |
Cumberland County, Maine
NERFINISHED
ⓘ
Maine NERFINISHED ⓘ Oxford County, Maine NERFINISHED ⓘ |
| locatedInRegion | southwestern Maine NERFINISHED ⓘ |
| managingAuthority | State of Maine NERFINISHED ⓘ |
| mouth | Sebago Lake NERFINISHED ⓘ |
| partOf | Sebago Lake watershed NERFINISHED ⓘ |
| source | Long Lake NERFINISHED ⓘ |
| tributaryOf | Sebago Lake NERFINISHED ⓘ |
| usedFor |
canoeing
ⓘ
fishing ⓘ kayaking ⓘ power boating ⓘ recreational boating ⓘ scenic boat tours ⓘ |
| watercourseOf |
Long Lake
NERFINISHED
ⓘ
Sebago Lake NERFINISHED ⓘ |
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: Songo River Description of subject: The Songo River is a waterway in southwestern Maine that connects Long Lake to Sebago Lake and is known for its scenic, recreational boating route.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.