Triple

T11600892
Position Surface form Disambiguated ID Type / Status
Subject South Chicago branch E275124 entity
Predicate connectsWith P37 FINISHED
Object Blue Island branch E272750 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: Blue Island branch | Statement: [South Chicago branch, connectsWith, Blue Island branch]

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: Blue Island branch
Context triple: [South Chicago branch, connectsWith, Blue Island branch]
  • A. Blue Island branch chosen
    The Blue Island branch is a commuter rail branch line in the Chicago area that serves as part of Metra's Electric District network, connecting downtown Chicago with the suburb of Blue Island.
  • B. South Chicago branch
    The South Chicago branch is a commuter rail branch line in Chicago operated as part of Metra's Electric District, serving neighborhoods on the city's South Side.
  • C. Cermak Branch
    Cermak Branch is a segment of the Chicago Transit Authority’s rapid transit system that forms part of the Pink Line route.
  • D. Rock Island District Beverly Branch
    The Rock Island District Beverly Branch is a commuter rail branch line in the Chicago area that serves the Beverly and Morgan Park neighborhoods as part of Metra’s Rock Island District service.
  • E. Lake City Branch
    Lake City Branch is a neighborhood library in Seattle that serves the Lake City community as part of the Seattle Public Library system.
  • 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_69d6aae6b14c81908dc5a74bad7591f9 elicitation completed
NER batch_69d8954c3c248190bcccd4c7ff667b3a ner completed
NED1 batch_69e8a7f018a881908f4b206699044ceb ned_source_triple completed
Created at: April 8, 2026, 9:38 p.m.