City Tunnel No. 1
E305759
City Tunnel No. 1 is a major New York City water supply tunnel that conveys drinking water from upstate reservoirs into the city’s distribution system.
All labels observed (1)
| Label | Occurrences |
|---|---|
| City Tunnel No. 1 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2874436 — 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: City Tunnel No. 1 Context triple: [Hillview Reservoir, connectedTo, City Tunnel No. 1]
-
A.
Prudential Tunnel
Prudential Tunnel is a vehicular tunnel in Boston, Massachusetts, that carries traffic beneath the Prudential Center complex as part of the Massachusetts Turnpike.
-
B.
Montague Street Tunnel
The Montague Street Tunnel is a New York City Subway tunnel under the East River that carries trains between Manhattan and Brooklyn.
-
C.
Kingsway Tunnel
The Kingsway Tunnel is a major road tunnel under the River Mersey in northwest England, carrying vehicular traffic between Liverpool and the Wirral peninsula.
-
D.
Dartford Tunnel
The Dartford Tunnel is a major road tunnel under the River Thames in southeast England, forming part of a key river crossing on the London orbital route.
-
E.
Greenwich Foot Tunnel
Greenwich Foot Tunnel is a historic pedestrian tunnel beneath the River Thames in London, connecting Greenwich on the south bank with the Isle of Dogs on the north.
- 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: City Tunnel No. 1 Target entity description: City Tunnel No. 1 is a major New York City water supply tunnel that conveys drinking water from upstate reservoirs into the city’s distribution system.
-
A.
Prudential Tunnel
Prudential Tunnel is a vehicular tunnel in Boston, Massachusetts, that carries traffic beneath the Prudential Center complex as part of the Massachusetts Turnpike.
-
B.
Montague Street Tunnel
The Montague Street Tunnel is a New York City Subway tunnel under the East River that carries trains between Manhattan and Brooklyn.
-
C.
Kingsway Tunnel
The Kingsway Tunnel is a major road tunnel under the River Mersey in northwest England, carrying vehicular traffic between Liverpool and the Wirral peninsula.
-
D.
Dartford Tunnel
The Dartford Tunnel is a major road tunnel under the River Thames in southeast England, forming part of a key river crossing on the London orbital route.
-
E.
Greenwich Foot Tunnel
Greenwich Foot Tunnel is a historic pedestrian tunnel beneath the River Thames in London, connecting Greenwich on the south bank with the Isle of Dogs on the north.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
New York City infrastructure
ⓘ
municipal water tunnel ⓘ water supply tunnel ⓘ |
| connectsFrom | upstate New York reservoirs ⓘ |
| connectsTo | New York City water distribution system ⓘ |
| constructionStartDate | 1917 ⓘ |
| conveys | drinking water ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| followedBy |
City Tunnel No. 2
ⓘ
City Tunnel No. 3 ⓘ |
| function | transport potable water under pressure ⓘ |
| locatedIn |
New York City
ⓘ
New York State ⓘ |
| maintainedBy | New York City Department of Environmental Protection ⓘ |
| medium | underground tunnel ⓘ |
| operator | New York City Department of Environmental Protection ⓘ |
| ownedBy |
New York City
ⓘ
surface form:
City of New York
|
| partOf | New York City water supply system ⓘ |
| partOfSeries | New York City water tunnels ⓘ |
| purpose | municipal water supply ⓘ |
| serviceArea |
New York metropolitan area
ⓘ
surface form:
New York City metropolitan area
|
| status | in service ⓘ |
| supplies |
Brooklyn
ⓘ
surface form:
borough of Brooklyn
borough of Manhattan ⓘ Borough of Queens ⓘ
surface form:
borough of Queens
borough of the Bronx ⓘ |
| waterSource |
Catskill Aqueduct
ⓘ
Croton Aqueduct system ⓘ
surface form:
Croton Aqueduct
Delaware Aqueduct ⓘ |
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: City Tunnel No. 1 Description of subject: City Tunnel No. 1 is a major New York City water supply tunnel that conveys drinking water from upstate reservoirs into the city’s distribution system.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.