Triple

T11744965
Position Surface form Disambiguated ID Type / Status
Subject Buffalo Grove, Illinois E279254 entity
Predicate hasTransportation P105 FINISHED
Object Metra North Central Service (nearby stations) E425259 NE FINISHED

How this triple was built (2 steps)

Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.

NER Named-entity recognition gpt-5-mini
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: Metra North Central Service (nearby stations) | Statement: [Buffalo Grove, Illinois, hasTransportation, Metra North Central Service (nearby stations)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Metra North Central Service (nearby stations)
Context triple: [Buffalo Grove, Illinois, hasTransportation, Metra North Central Service (nearby stations)]
  • A. Metra North Central Service chosen
    Metra North Central Service is a commuter rail line in the Chicago metropolitan area that runs between downtown Chicago and northern suburbs, primarily serving communities along the I-94 and I-294 corridors.
  • B. Metra commuter rail services at Chicago Union Station
    Metra commuter rail services at Chicago Union Station are a network of regional passenger trains that connect downtown Chicago with its surrounding suburbs via multiple lines terminating or passing through this major terminal.
  • C. Metra at Jefferson Park
    Metra at Jefferson Park is a commuter rail station in Chicago’s Jefferson Park neighborhood that serves as a key transfer point between Metra trains and CTA transit services.
  • D. Metra fare zones
    Metra fare zones are a distance-based pricing system used by the Chicago-area Metra commuter rail network to determine ticket costs between stations.
  • E. Metra SouthWest Service
    Metra SouthWest Service is a commuter rail line in the Chicago metropolitan area that connects downtown Chicago with southwestern suburbs including Orland Park, Illinois.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 batches)

The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.

Step Stage Batch ID Status When
creating Elicitation batch_69d6ab01038c819080714901502c84fc completed April 8, 2026, 7:22 p.m.
NER Named-entity recognition batch_69d8a4f2a38c8190a682d8dae1ab9415 completed April 10, 2026, 7:21 a.m.
NED1 Entity disambiguation (via context triple) batch_69f019e4f0988190afe0b92f4c9d8073 completed April 28, 2026, 2:22 a.m.
Created at: April 8, 2026, 9:41 p.m.