Triple

T5803953
Position Surface form Disambiguated ID Type / Status
Subject Camden–Philadelphia rapid transit line E128694 entity
Predicate partOf P40 FINISHED
Object Philadelphia metropolitan area 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 metropolitan area transit network | Statement: [Camden–Philadelphia rapid transit line, partOf, Philadelphia metropolitan area 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 metropolitan area transit network
Context triple: [Camden–Philadelphia rapid transit line, partOf, Philadelphia metropolitan area transit network]
  • A. Portland metropolitan transit system
    The Portland metropolitan transit system is the integrated public transportation network serving the Portland, Oregon region, encompassing buses, light rail, streetcars, and related transit corridors.
  • B. 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.
  • C. Philadelphia commuter rail network
    The Philadelphia commuter rail network is a regional passenger rail system serving the greater Philadelphia area, primarily operated by SEPTA and connecting the city with its surrounding suburbs.
  • D. 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.
  • E. Bi-State Development Agency (Metro) transit system
    The Bi-State Development Agency (Metro) transit system is the public transportation network for the St. Louis region, operating MetroLink light rail, MetroBus services, and paratransit across Missouri and Illinois communities.
  • 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_69c00846a0d881909e46841f8e156b64 elicitation completed
NER batch_69c02b1304588190b59a18fb7b70a60f ner completed
NED1 batch_69c09836d00881908c210b2932d67519 ned_source_triple completed
Created at: March 22, 2026, 3:52 p.m.