East Branch Pemigewasset River headwaters
E606647
The East Branch Pemigewasset River headwaters are the remote, high-elevation source streams of the East Branch Pemigewasset River, located deep within New Hampshire’s Pemigewasset Wilderness in the White Mountains.
All labels observed (1)
| Label | Occurrences |
|---|---|
| East Branch Pemigewasset River headwaters canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6629279 — 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: East Branch Pemigewasset River headwaters Context triple: [Pemigewasset Wilderness, contains, East Branch Pemigewasset River headwaters]
-
A.
East Branch Westfield River
The East Branch Westfield River is a major tributary stream in western Massachusetts that contributes to the flow and watershed of the Westfield River system.
-
B.
West Branch Westfield River
The West Branch Westfield River is a major tributary of the Westfield River in western Massachusetts, known for its scenic, fast-flowing waters popular with anglers and whitewater paddlers.
-
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.
Little Androscoggin River
The Little Androscoggin River is a smaller river in western Maine that drains several lakes and communities before joining the larger Androscoggin River.
-
E.
Ossipee River
The Ossipee River is a New England waterway flowing through eastern New Hampshire and southwestern Maine, known for draining Ossipee Lake and contributing to the Saco 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: East Branch Pemigewasset River headwaters Target entity description: The East Branch Pemigewasset River headwaters are the remote, high-elevation source streams of the East Branch Pemigewasset River, located deep within New Hampshire’s Pemigewasset Wilderness in the White Mountains.
-
A.
East Branch Westfield River
The East Branch Westfield River is a major tributary stream in western Massachusetts that contributes to the flow and watershed of the Westfield River system.
-
B.
West Branch Westfield River
The West Branch Westfield River is a major tributary of the Westfield River in western Massachusetts, known for its scenic, fast-flowing waters popular with anglers and whitewater paddlers.
-
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.
Little Androscoggin River
The Little Androscoggin River is a smaller river in western Maine that drains several lakes and communities before joining the larger Androscoggin River.
-
E.
Ossipee River
The Ossipee River is a New England waterway flowing through eastern New Hampshire and southwestern Maine, known for draining Ossipee Lake and contributing to the Saco River watershed.
- F. None of above. chosen
Statements (35)
| Predicate | Object |
|---|---|
| instanceOf |
geographic feature
ⓘ
river headwaters ⓘ |
| access | foot travel only ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| county | Grafton County, New Hampshire NERFINISHED ⓘ |
| drainageBasin | Merrimack River basin NERFINISHED ⓘ |
| ecosystem |
boreal forest
ⓘ
northern hardwood forest ⓘ |
| elevation | high-elevation ⓘ |
| environment |
remote
ⓘ
wilderness ⓘ |
| flowsThrough | Pemigewasset Wilderness NERFINISHED ⓘ |
| hydrologicalRole | source area for East Branch Pemigewasset River ⓘ |
| locatedIn |
Grafton County, New Hampshire
NERFINISHED
ⓘ
New Hampshire ⓘ Pemigewasset Wilderness NERFINISHED ⓘ United States of America ⓘ
surface form:
United States
White Mountains NERFINISHED ⓘ |
| locatedNear |
Bond Range
NERFINISHED
ⓘ
Franconia Ridge NERFINISHED ⓘ Twin Range NERFINISHED ⓘ |
| managementBy | United States Forest Service NERFINISHED ⓘ |
| partOf |
East Branch Pemigewasset River
NERFINISHED
ⓘ
White Mountain National Forest hydrological system NERFINISHED ⓘ |
| recreation |
backcountry hiking
ⓘ
wilderness backpacking ⓘ |
| region | northern New England ⓘ |
| sourceOf | East Branch Pemigewasset River NERFINISHED ⓘ |
| state | New Hampshire ⓘ |
| terrain | mountainous ⓘ |
| tributaryOf |
Merrimack River watershed
NERFINISHED
ⓘ
Pemigewasset River NERFINISHED ⓘ |
| waterBodyType | headwater streams ⓘ |
| withinProtectedArea |
Pemigewasset Wilderness
NERFINISHED
ⓘ
White Mountain National Forest 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: East Branch Pemigewasset River headwaters Description of subject: The East Branch Pemigewasset River headwaters are the remote, high-elevation source streams of the East Branch Pemigewasset River, located deep within New Hampshire’s Pemigewasset Wilderness in the White Mountains.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.