Penobscot River watershed
E438434
The Penobscot River watershed is the extensive drainage basin in Maine that collects and channels water from numerous tributaries and landscapes into the Penobscot River system.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Penobscot River watershed canonical | 7 |
| Penobscot River watershed (via Gulf of Maine) | 1 |
| West Branch Penobscot River system | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4426922 — 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: Penobscot River watershed Context triple: [Penobscot River, partOf, Penobscot River watershed]
-
A.
Kennebec River watershed
The Kennebec River watershed is the drainage basin of Maine’s Kennebec River, encompassing its tributaries, surrounding lands, and communities that rely on its freshwater ecosystem.
-
B.
Androscoggin River watershed
The Androscoggin River watershed is the land area in Maine and New Hampshire whose surface water drains into the Androscoggin River, encompassing its tributaries, lakes, and surrounding ecosystems.
-
C.
Penobscot River
The Penobscot River is a major river in Maine that flows through central and eastern parts of the state to Penobscot Bay, historically important for transportation, logging, and fisheries.
-
D.
Sebasticook River watershed
The Sebasticook River watershed is a drainage basin in central Maine that collects water from numerous lakes, rivers, and streams before ultimately feeding into the Kennebec River system.
-
E.
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.
- 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: Penobscot River watershed Target entity description: The Penobscot River watershed is the extensive drainage basin in Maine that collects and channels water from numerous tributaries and landscapes into the Penobscot River system.
-
A.
Kennebec River watershed
The Kennebec River watershed is the drainage basin of Maine’s Kennebec River, encompassing its tributaries, surrounding lands, and communities that rely on its freshwater ecosystem.
-
B.
Androscoggin River watershed
The Androscoggin River watershed is the land area in Maine and New Hampshire whose surface water drains into the Androscoggin River, encompassing its tributaries, lakes, and surrounding ecosystems.
-
C.
Penobscot River
The Penobscot River is a major river in Maine that flows through central and eastern parts of the state to Penobscot Bay, historically important for transportation, logging, and fisheries.
-
D.
Sebasticook River watershed
The Sebasticook River watershed is a drainage basin in central Maine that collects water from numerous lakes, rivers, and streams before ultimately feeding into the Kennebec River system.
-
E.
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.
- F. None of above. chosen
Statements (93)
| Predicate | Object |
|---|---|
| instanceOf |
drainage basin
ⓘ
geographical region ⓘ river watershed ⓘ |
| associatedWith | Penobscot Nation NERFINISHED ⓘ |
| drainsInto | Penobscot River NERFINISHED ⓘ |
| hasConservationProject | Penobscot River Restoration Project NERFINISHED ⓘ |
| hasCulturalSignificanceFor | Penobscot Nation NERFINISHED ⓘ |
| hasEcologicalFeature |
Atlantic salmon habitat
ⓘ
anadromous fish migration routes ⓘ forested uplands ⓘ riparian wetlands ⓘ |
| hasHumanUse |
commercial fishing
ⓘ
drinking water supply ⓘ hydropower generation ⓘ recreation ⓘ timber harvesting ⓘ |
| hasOutflow | Penobscot Bay NERFINISHED ⓘ |
| hasTributary |
Cold Stream
NERFINISHED
ⓘ
East Branch Penobscot River NERFINISHED ⓘ Kenduskeag Stream NERFINISHED ⓘ Mattawamkeag River NERFINISHED ⓘ Narraguagus Stream NERFINISHED ⓘ Passadumkeag River NERFINISHED ⓘ Piscataquis River NERFINISHED ⓘ Seboeis River NERFINISHED ⓘ West Branch Penobscot River NERFINISHED ⓘ |
| includesCity |
Bangor
NERFINISHED
ⓘ
East Millinocket NERFINISHED ⓘ Lincoln NERFINISHED ⓘ Millinocket NERFINISHED ⓘ Old Town NERFINISHED ⓘ Orono NERFINISHED ⓘ |
| includesProtectedArea |
Baxter State Park
NERFINISHED
ⓘ
Chesuncook Public Reserved Land NERFINISHED ⓘ Debsconeag Lakes Wilderness Area NERFINISHED ⓘ Duck Lake Public Reserved Land NERFINISHED ⓘ Katahdin Woods and Waters National Monument NERFINISHED ⓘ Moosehorn National Wildlife Refuge NERFINISHED ⓘ Nahmakanta Public Reserved Land NERFINISHED ⓘ Penobscot River Corridor NERFINISHED ⓘ Penobscot River Restoration Trust project area ⓘ Scraggly Lake Public Reserved Land NERFINISHED ⓘ Seboeis Public Reserved Land NERFINISHED ⓘ Sunkhaze Meadows National Wildlife Refuge NERFINISHED ⓘ West Branch Pleasant River Public Reserved Land NERFINISHED ⓘ |
| includesTown |
Bradley
NERFINISHED
ⓘ
Brewer NERFINISHED ⓘ Eddington NERFINISHED ⓘ Hampden NERFINISHED ⓘ Howland NERFINISHED ⓘ Mattawamkeag NERFINISHED ⓘ Medway NERFINISHED ⓘ Orrington NERFINISHED ⓘ Passadumkeag NERFINISHED ⓘ Veazie NERFINISHED ⓘ |
| includesWaterBody |
Baskahegan Lake
NERFINISHED
ⓘ
Big Lake NERFINISHED ⓘ Caribou Lake NERFINISHED ⓘ Chemo Pond NERFINISHED ⓘ Chesuncook Lake NERFINISHED ⓘ Cold Stream Pond NERFINISHED ⓘ Dolby Pond NERFINISHED ⓘ East Grand Lake NERFINISHED ⓘ Grand Lake Matagamon NERFINISHED ⓘ Hermon Pond NERFINISHED ⓘ Junior Lake NERFINISHED ⓘ Lobster Lake NERFINISHED ⓘ Mattawamkeag Lake NERFINISHED ⓘ Mayo Pond NERFINISHED ⓘ Millinocket Lake NERFINISHED ⓘ Nahmakanta Lake NERFINISHED ⓘ Nicatous Lake NERFINISHED ⓘ North Twin Lake NERFINISHED ⓘ Onawa Lake NERFINISHED ⓘ Pemadumcook Chain of Lakes NERFINISHED ⓘ Pleasant Lake NERFINISHED ⓘ Poland Pond NERFINISHED ⓘ Pushaw Lake NERFINISHED ⓘ Rainbow Lake NERFINISHED ⓘ Ripogenus Lake NERFINISHED ⓘ Schoodic Lake NERFINISHED ⓘ Sebec Lake NERFINISHED ⓘ Sebec River NERFINISHED ⓘ Seboeis Lake NERFINISHED ⓘ South Twin Lake NERFINISHED ⓘ Spednic Lake NERFINISHED ⓘ Sysladobsis Lake NERFINISHED ⓘ West Grand Lake NERFINISHED ⓘ West Lake NERFINISHED ⓘ |
| locatedIn |
Maine
NERFINISHED
ⓘ
United States of America ⓘ
surface form:
United States
|
| namedAfter | Penobscot River NERFINISHED ⓘ |
| partOf | Gulf of Maine drainage basin 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: Penobscot River watershed Description of subject: The Penobscot River watershed is the extensive drainage basin in Maine that collects and channels water from numerous tributaries and landscapes into the Penobscot River system.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Chesuncook Lake
this entity surface form:
West Branch Penobscot River system
this entity surface form:
Penobscot River watershed (via Gulf of Maine)
subject surface form:
Joseph Orono