Triple

T13974166
Position Surface form Disambiguated ID Type / Status
Subject SEPTA Fern Rock Rail Yard E336140 entity
Predicate regionServed P82 FINISHED
Object Philadelphia metropolitan area E5478 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 | Statement: [SEPTA Fern Rock Rail Yard, regionServed, Philadelphia metropolitan area]

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
Context triple: [SEPTA Fern Rock Rail Yard, regionServed, Philadelphia metropolitan area]
  • A. Philadelphia metropolitan area chosen
    The Philadelphia metropolitan area is a major U.S. urban region centered on the city of Philadelphia, encompassing its surrounding suburbs and economic, cultural, and educational hubs.
  • B. Dallas metropolitan area
    The Dallas metropolitan area is a major urban and economic hub in North Texas centered on the city of Dallas and encompassing numerous surrounding suburbs and communities.
  • C. Anderson metropolitan area
    The Anderson metropolitan area is a U.S. metropolitan region in northwestern South Carolina centered on the city of Anderson and its surrounding communities.
  • D. David metropolitan area
    The David metropolitan area is the urban region centered around the city of David in western Panama, serving as a key commercial and transportation hub for the Chiriquí Province.
  • E. Seattle metropolitan area
    The Seattle metropolitan area is a major urban and economic hub in Washington State centered on the city of Seattle, known for its technology industry, port facilities, and cultural influence in the Pacific Northwest.
  • 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_69d81c61f3508190aaf2ca0dc0002c59 elicitation completed
NER batch_69de2e8fd6d48190a157eae8df3a2f3a ner completed
NED1 batch_69fba1df334c8190a3d65198cc3d11f6 ned_source_triple completed
Created at: April 9, 2026, 10:18 p.m.