Triple

T6255105
Position Surface form Disambiguated ID Type / Status
Subject Mattapan Line E140142 entity
Predicate hasStation P35 FINISHED
Object Capen Street station E131132 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: Capen Street station | Statement: [Mattapan Line, hasStation, Capen Street station]

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: Capen Street station
Context triple: [Mattapan Line, hasStation, Capen Street station]
  • A. Capen Street station chosen
    Capen Street station is a small light rail stop on the MBTA's Mattapan trolley line in Milton, Massachusetts.
  • B. Fulton Street station
    Fulton Street station is a major New York City Subway complex in Lower Manhattan that serves multiple lines and connects to the Fulton Center transit hub.
  • C. Grove Street station
    Grove Street station is a light rail station in Bloomfield, New Jersey, serving as the northern terminus of the Newark Light Rail line.
  • D. Grove Street station
    Grove Street station is a key underground stop on the PATH rapid transit system serving Jersey City, New Jersey.
  • E. Sullivan Square station
    Sullivan Square station is a major multimodal transit hub in Boston, Massachusetts, serving MBTA Orange Line trains and numerous bus routes that connect the city and surrounding areas.
  • 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_69c008b4858c819095b0199114a9a87b elicitation completed
NER batch_69c06363d6008190bf05e003b1f74497 ner completed
NED1 batch_69c62d17de1c8190a1f09c9e00860bcd ned_source_triple completed
Created at: March 22, 2026, 4:24 p.m.