Triple
T19267980
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Metropolitan Water Works system |
E481838
|
entity |
| Predicate | managedBy |
P86
|
FINISHED |
| Object | Metropolitan Water Board |
—
|
NE NERFINISHED |
How this triple was built (3 steps)
Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.
NER
Named-entity recognition
gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: Metropolitan Water Board | Statement: [Metropolitan Water Works system, managedBy, Metropolitan Water Board]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Metropolitan Water Board Context triple: [Metropolitan Water Works system, managedBy, Metropolitan Water Board]
-
A.
New York City Board of Water Supply
The New York City Board of Water Supply was a municipal agency responsible for planning and constructing the large-scale waterworks that expanded and secured New York City’s drinking water system in the early 20th century.
-
B.
Fairfax Water
Fairfax Water is a major public water utility in Northern Virginia that supplies drinking water to residents and businesses in Fairfax County and surrounding areas.
-
C.
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.
-
D.
Providence Water Supply Board
The Providence Water Supply Board is the public utility responsible for managing and delivering drinking water to Providence, Rhode Island and several surrounding communities.
-
E.
Riverside Improvement Company
Riverside Improvement Company was a 19th-century development firm responsible for initiating and overseeing the creation of the planned suburban community of Riverside, Illinois.
- 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 Board Target entity description: The Metropolitan Water Board was a public authority responsible for supplying and regulating water services to the Greater London area in the 20th century.
-
A.
New York City Board of Water Supply
The New York City Board of Water Supply was a municipal agency responsible for planning and constructing the large-scale waterworks that expanded and secured New York City’s drinking water system in the early 20th century.
-
B.
Fairfax Water
Fairfax Water is a major public water utility in Northern Virginia that supplies drinking water to residents and businesses in Fairfax County and surrounding areas.
-
C.
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.
-
D.
Providence Water Supply Board
The Providence Water Supply Board is the public utility responsible for managing and delivering drinking water to Providence, Rhode Island and several surrounding communities.
-
E.
Riverside Improvement Company
Riverside Improvement Company was a 19th-century development firm responsible for initiating and overseeing the creation of the planned suburban community of Riverside, Illinois.
- F. None of above. chosen
Provenance (2 batches)
The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.
| Step | Stage | Batch ID | Status | When |
|---|---|---|---|---|
| creating | Elicitation | batch_69d8e8ce54cc8190998418ff1f66ef28 |
completed | April 10, 2026, 12:10 p.m. |
| NER | Named-entity recognition | batch_69e5fb8e1f888190a95f60fa29ca3b98 |
completed | April 20, 2026, 10:10 a.m. |
Created at: April 10, 2026, 1:29 p.m.