West Branch Tunnel
E818690
West Branch Tunnel is a major underground conduit within New York’s Delaware Aqueduct system that transports drinking water from upstate reservoirs toward New York City.
All labels observed (1)
| Label | Occurrences |
|---|---|
| West Branch Tunnel canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9739078 — 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: West Branch Tunnel Context triple: [Delaware Aqueduct, hasPart, West Branch Tunnel]
-
A.
Sumner Tunnel
The Sumner Tunnel is a major vehicular tunnel in Boston that carries traffic under Boston Harbor between East Boston and downtown.
-
B.
Bosley Tunnel
Bosley Tunnel is a historic narrowboat canal tunnel in Cheshire, England, forming part of the Macclesfield Canal navigation route.
-
C.
Adams Tunnel
Adams Tunnel is a major transmountain water diversion tunnel in Colorado that conveys Colorado River water beneath the Continental Divide to the eastern slope as part of a large federal water project.
-
D.
Anton Anderson Memorial Tunnel
The Anton Anderson Memorial Tunnel is a combined rail and highway tunnel in Alaska that provides the only road access to the town of Whittier through the Chugach Mountains.
-
E.
Clyde Tunnel
The Clyde Tunnel is a road tunnel in Glasgow, Scotland, carrying vehicular traffic beneath the River Clyde to connect the city’s north and south banks.
- 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: West Branch Tunnel Target entity description: West Branch Tunnel is a major underground conduit within New York’s Delaware Aqueduct system that transports drinking water from upstate reservoirs toward New York City.
-
A.
Sumner Tunnel
The Sumner Tunnel is a major vehicular tunnel in Boston that carries traffic under Boston Harbor between East Boston and downtown.
-
B.
Bosley Tunnel
Bosley Tunnel is a historic narrowboat canal tunnel in Cheshire, England, forming part of the Macclesfield Canal navigation route.
-
C.
Adams Tunnel
Adams Tunnel is a major transmountain water diversion tunnel in Colorado that conveys Colorado River water beneath the Continental Divide to the eastern slope as part of a large federal water project.
-
D.
Anton Anderson Memorial Tunnel
The Anton Anderson Memorial Tunnel is a combined rail and highway tunnel in Alaska that provides the only road access to the town of Whittier through the Chugach Mountains.
-
E.
Clyde Tunnel
The Clyde Tunnel is a road tunnel in Glasgow, Scotland, carrying vehicular traffic beneath the River Clyde to connect the city’s north and south banks.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
underground conduit
ⓘ
water supply tunnel ⓘ |
| conduitType | pressure tunnel ⓘ |
| connectsTo |
Delaware Aqueduct system
NERFINISHED
ⓘ
New York City water distribution system ⓘ upstate New York reservoirs ⓘ |
| constructionForm | tunnel ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| feeds | downstream sections of the Delaware Aqueduct ⓘ |
| function | transport water from upstate reservoirs toward New York City ⓘ |
| isPartOfInfrastructureType |
long‑distance water conveyance system
ⓘ
municipal water infrastructure ⓘ |
| isUnderground | true ⓘ |
| locatedIn | New York State NERFINISHED ⓘ |
| locatedInRegion | upstate New York ⓘ |
| locatedInWaterSystem | New York City water supply system ⓘ |
| operator | New York City Department of Environmental Protection NERFINISHED ⓘ |
| owner | New York City Department of Environmental Protection NERFINISHED ⓘ |
| partOf |
Delaware Aqueduct
NERFINISHED
ⓘ
New York City water tunnels and aqueducts network NERFINISHED ⓘ |
| purpose | ensure reliable water supply to New York City ⓘ |
| roleInSystem | major conveyance link within the Delaware Aqueduct ⓘ |
| serves | New York City NERFINISHED ⓘ |
| servesPopulation | New York City metropolitan area NERFINISHED ⓘ |
| subsystemOf | New York City Delaware System NERFINISHED ⓘ |
| transportedMedium |
drinking water
ⓘ
potable water ⓘ |
| use | drinking water conveyance ⓘ |
| waterSource | upstate New York reservoirs ⓘ |
| waterSourceSystem | Delaware System reservoirs ⓘ |
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: West Branch Tunnel Description of subject: West Branch Tunnel is a major underground conduit within New York’s Delaware Aqueduct system that transports drinking water from upstate reservoirs toward New York City.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.