Triple

T5429619
Position Surface form Disambiguated ID Type / Status
Subject 15–16th & Locust station E121449 entity
Predicate partOfNetwork P840 FINISHED
Object Philadelphia subway–surface transit network E306795 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: Philadelphia subway–surface transit network | Statement: [15–16th & Locust station, partOfNetwork, Philadelphia subway–surface transit network]

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: Philadelphia subway–surface transit network
Context triple: [15–16th & Locust station, partOfNetwork, Philadelphia subway–surface transit network]
  • A. Philadelphia subway system chosen
    The Philadelphia subway system is the rapid transit network serving Philadelphia, Pennsylvania, primarily operated by SEPTA and consisting of multiple underground and elevated lines that connect the city and surrounding areas.
  • B. New York City Subway
    The New York City Subway is one of the world’s largest and busiest rapid transit systems, serving the five boroughs of New York City with extensive 24/7 underground and elevated rail service.
  • C. Boston subway
    The Boston subway, officially known as the MBTA or "the T," is one of the oldest public transit systems in the United States, serving the Greater Boston area with an extensive network of underground and surface rail lines.
  • D. Brooklyn–Manhattan Transit Corporation subway network
    The Brooklyn–Manhattan Transit Corporation subway network was a major early 20th-century rapid transit system in New York City that operated extensive lines in Brooklyn and Manhattan before being incorporated into today’s NYC Subway.
  • E. New York City public transportation network
    The New York City public transportation network is an extensive, interconnected system of subways, buses, commuter rails, and ferries that serves millions of riders daily across the five boroughs.
  • 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_69bd463c65f0819082ee6483ab4b466a elicitation completed
NER batch_69bd883d1bfc8190859bb05cfab065c8 ner completed
NED1 batch_69bf3ac6285081909afa6e91a023f6d5 ned_source_triple completed
Created at: March 20, 2026, 2:06 p.m.