Triple

T11947529
Position Surface form Disambiguated ID Type / Status
Subject Gilboa Dam E284339 entity
Predicate partOf P40 FINISHED
Object New York City water supply system E42502 NE FINISHED

Named-entity recognition

Before disambiguation, gpt-5-mini classified whether the object phrase is a named entity — the step behind the object's NE type shown above.

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: New York City water supply system | Statement: [Gilboa Dam, partOf, New York City water supply system]

Disambiguation candidates (1 decision)

The exact options the model was shown at each disambiguation step, with the option it chose highlighted — the evidence behind this triple's disambiguated ids.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: New York City water supply system
Context triple: [Gilboa Dam, partOf, New York City water supply system]
  • A. New York City water supply system chosen
    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.
  • B. Catskill–Delaware water supply system
    The Catskill–Delaware water supply system is a major network of reservoirs, aqueducts, and related infrastructure that delivers the majority of New York City’s high-quality drinking water from the Catskill Mountains and Delaware River watershed.
  • C. Central Park water system
    The Central Park water system is an interconnected network of lakes, ponds, streams, and reservoirs in New York City's Central Park, designed for both scenic beauty and recreational use.
  • D. Metropolitan Water Works system
    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.
  • E. 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.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 batches)

Stage Batch ID Job type Status
creating batch_69d6ab2db38c8190b1f0ed6663ef8ada elicitation completed
NER batch_69d903456ec0819082b8b10755a6b732 ner completed
NED1 batch_69f458e003a0819082d052fd0bb88d8b ned_source_triple completed
Created at: April 8, 2026, 9:45 p.m.