Metropolitan Water Works system
E481838
The Metropolitan Water Works system is a historic public water supply network that provided drinking water to the Boston metropolitan area through an extensive system of reservoirs, aqueducts, and related infrastructure.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Boston water supply system | 2 |
| Massachusetts metropolitan water system | 1 |
| Metropolitan District Water Supply project | 1 |
| Metropolitan Water Division | 1 |
| Metropolitan Water Works system canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4932400 — 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: Metropolitan Water Works system Context triple: [Echo Bridge aqueduct, partOf, Metropolitan Water Works system]
-
A.
Metropolitan Waterworks and Sewerage System
The Metropolitan Waterworks and Sewerage System is a Philippine government agency responsible for providing and regulating water supply and sewerage services in Metro Manila and nearby areas.
-
B.
New York City water supply system
The New York City water supply system is a vast network of reservoirs, aqueducts, tunnels, and distribution infrastructure that delivers potable water from upstate watersheds to millions of residents in New York City.
-
C.
South Bay Aqueduct
South Bay Aqueduct is a major California water conveyance facility that transports water from the State Water Project to communities in the southern San Francisco Bay Area.
-
D.
Croton water supply system
The Croton water supply system is a historic network of reservoirs, aqueducts, and related infrastructure that delivers drinking water from New York’s Croton River watershed to New York City.
-
E.
North Bay Aqueduct
The North Bay Aqueduct is a key water conveyance facility in California that delivers State Water Project supplies to communities in Solano and Napa counties.
- 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: Metropolitan Water Works system Target entity description: The Metropolitan Water Works system is a historic public water supply network that provided drinking water to the Boston metropolitan area through an extensive system of reservoirs, aqueducts, and related infrastructure.
-
A.
Metropolitan Waterworks and Sewerage System
The Metropolitan Waterworks and Sewerage System is a Philippine government agency responsible for providing and regulating water supply and sewerage services in Metro Manila and nearby areas.
-
B.
New York City water supply system
The New York City water supply system is a vast network of reservoirs, aqueducts, tunnels, and distribution infrastructure that delivers potable water from upstate watersheds to millions of residents in New York City.
-
C.
South Bay Aqueduct
South Bay Aqueduct is a major California water conveyance facility that transports water from the State Water Project to communities in the southern San Francisco Bay Area.
-
D.
Croton water supply system
The Croton water supply system is a historic network of reservoirs, aqueducts, and related infrastructure that delivers drinking water from New York’s Croton River watershed to New York City.
-
E.
North Bay Aqueduct
The North Bay Aqueduct is a key water conveyance facility in California that delivers State Water Project supplies to communities in Solano and Napa counties.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
historic infrastructure
ⓘ
public water supply system ⓘ waterworks ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| designedFor | large urban population ⓘ |
| function |
collect water
ⓘ
convey water ⓘ distribute water ⓘ store water ⓘ |
| hasHeritageValue | true ⓘ |
| hasPart |
aqueduct
ⓘ
control gate ⓘ dam ⓘ distribution mains ⓘ gatehouse ⓘ intake works ⓘ metropolitan reservoirs ⓘ pumping station ⓘ reservoir ⓘ screening facilities ⓘ spillway ⓘ standpipe ⓘ water tower ⓘ |
| historicalSignificance |
early regional water supply network
ⓘ
example of 19th-century civil engineering ⓘ |
| isPublicInfrastructure | true ⓘ |
| locatedIn | Massachusetts ⓘ |
| managedBy | Metropolitan Water Board ⓘ |
| networkType | gravity-fed water system ⓘ |
| partOf | Boston water supply history ⓘ |
| purpose |
drinking water supply
ⓘ
municipal water supply ⓘ |
| regionServed | Greater Boston ⓘ |
| sector | water supply and sanitation ⓘ |
| serves |
Boston metropolitan area
ⓘ
linked to:
Greater Boston
|
| serviceArea |
Boston
ⓘ
Boston suburbs ⓘ |
| successor | Massachusetts Water Resources Authority ⓘ |
| transportMedium |
aqueduct
ⓘ
pipeline ⓘ tunnel ⓘ |
| use | surface water ⓘ |
| usedFor | potable water ⓘ |
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: Metropolitan Water Works system Description of subject: The Metropolitan Water Works system is a historic public water supply network that provided drinking water to the Boston metropolitan area through an extensive system of reservoirs, aqueducts, and related infrastructure.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Metropolitan Water Works system
subject linked to:
Metropolitan District Commission
linked to: Metropolitan Water Works system
linked to: Metropolitan Water Works system
linked to: Metropolitan Water Works system
subject linked to:
Greenwich, Massachusetts, United States
linked to: Metropolitan Water Works system