Triple

T12717423
Position Surface form Disambiguated ID Type / Status
Subject Ridge Avenue corridor E303884 entity
Predicate isPartOfNetwork P840 FINISHED
Object Philadelphia subway 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 network | Statement: [Ridge Avenue corridor, isPartOfNetwork, Philadelphia subway 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 network
Context triple: [Ridge Avenue corridor, isPartOfNetwork, Philadelphia subway 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. Newark City Subway line
    The Newark City Subway line is a light rail service in Newark, New Jersey, operating largely in former subway and streetcar tunnels to connect downtown Newark with surrounding neighborhoods and transit hubs.
  • 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_69d7bdf084148190ab9d513dc0735af4 elicitation completed
NER batch_69d9620bd6148190a2f50067a4c18c14 ner completed
NED1 batch_69f671bcc10481909f150989f9545752 ned_source_triple completed
Created at: April 9, 2026, 5:23 p.m.