Triple

T10894178
Position Surface form Disambiguated ID Type / Status
Subject Old Town Transit Center E257264 entity
Predicate railLine P848 FINISHED
Object San Diego Trolley Blue Line E103770 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: San Diego Trolley Blue Line | Statement: [Old Town Transit Center, railLine, San Diego Trolley Blue Line]

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: San Diego Trolley Blue Line
Context triple: [Old Town Transit Center, railLine, San Diego Trolley Blue Line]
  • A. San Diego Trolley chosen
    The San Diego Trolley is a light rail transit system serving the San Diego metropolitan area, known for its multiple color-coded lines connecting downtown with surrounding communities and key regional destinations.
  • B. VTA light rail
    VTA light rail is a light rail public transit system serving Santa Clara County, including cities such as San Jose, operated by the Santa Clara Valley Transportation Authority.
  • C. G Line (Los Angeles Metro)
    The G Line (Los Angeles Metro) is a bus rapid transit route in Los Angeles’ San Fernando Valley that runs primarily along dedicated busways, providing high-frequency east–west service.
  • D. K Line (Los Angeles Metro)
    The K Line is a light rail route in the Los Angeles Metro Rail system serving neighborhoods in South Los Angeles and connecting to major transit hubs.
  • E. B Line (Los Angeles Metro)
    The B Line is a heavy-rail rapid transit line in the Los Angeles Metro system that runs primarily underground, connecting North Hollywood to downtown Los Angeles.
  • 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_69d6aa8550c8819095508a2ed9acf3db elicitation completed
NER batch_69d75d0153408190bcba2d9b03d78804 ner completed
NED1 batch_69e216b417bc8190b35477e9d363a289 ned_source_triple completed
Created at: April 8, 2026, 9:21 p.m.