Triple

T23029398
Position Surface form Disambiguated ID Type / Status
Subject Clinton–Washington Avenues (IND Fulton Street Line) E573412 entity
Predicate openedBy P421 FINISHED
Object Independent Subway System — NE NERFINISHED

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: Independent Subway System | Statement: [Clinton–Washington Avenues (IND Fulton Street Line), openedBy, Independent Subway 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: Independent Subway System
Context triple: [Clinton–Washington Avenues (IND Fulton Street Line), openedBy, Independent Subway System]
  • A. Independent Subway System (IND) chosen
    The Independent Subway System (IND) was New York City's municipally built and operated subway network, created in the early 20th century to compete with and eventually replace the privately run IRT and BMT lines.
  • B. Senate Subway System
    The Senate Subway System is an underground rail network in the U.S. Capitol complex that transports senators and staff between the Capitol and nearby Senate office buildings.
  • C. NFTA Metro system
    The NFTA Metro system is the public transit network serving the Buffalo–Niagara region of New York, providing bus and light rail services operated by the Niagara Frontier Transportation Authority.
  • D. METRO regional transit network
    The METRO regional transit network is a coordinated public transportation system that connects communities across its service area through buses, trains, and supporting facilities.
  • E. Metropolitan Transit System
    The Metropolitan Transit System is the primary public transportation agency serving the San Diego region, operating buses, trolleys, and related transit services.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (2 batches)

Stage Batch ID Job type Status
creating batch_69e245b821008190b0e09cb02092aae1 elicitation completed
NER batch_69f184803e908190b1e58545b9c3d587 ner completed
Created at: April 17, 2026, 3:53 p.m.