Triple

T7527086
Position Surface form Disambiguated ID Type / Status
Subject Metrolink San Bernardino Line E177919 entity
Predicate hasStation P35 FINISHED
Object Pomona (North) station
Pomona (North) station is a commuter rail stop in Pomona, California, serving passengers on Metrolink’s San Bernardino Line.
 E671270 NE FINISHED

How this triple was built (4 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: Pomona (North) station | Statement: [Metrolink San Bernardino Line, hasStation, Pomona (North) station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Pomona (North) station
Context triple: [Metrolink San Bernardino Line, hasStation, Pomona (North) station]
  • A. Westwood station
    Westwood station is a New Jersey Transit commuter rail stop in Westwood, New Jersey, serving passengers on the Pascack Valley Line.
  • B. Poplar station
    Poplar station is a light rail stop serving the suburb of Mt. Lebanon in the Pittsburgh, Pennsylvania metropolitan area.
  • C. Parker Road Station
    Parker Road Station is a major Dallas Area Rapid Transit (DART) light rail terminus and park-and-ride facility serving the northern suburbs of the Dallas–Fort Worth metroplex.
  • D. Valley Road station
    Valley Road station is a small light rail stop on the MBTA's Mattapan trolley line in Milton, Massachusetts.
  • E. Sutherland Road station
    Sutherland Road station is a light rail stop on Boston's MBTA Green Line B branch serving the Brighton neighborhood.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Pomona (North) station
Triple: [Metrolink San Bernardino Line, hasStation, Pomona (North) station]
Generated description
Pomona (North) station is a commuter rail stop in Pomona, California, serving passengers on Metrolink’s San Bernardino Line.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Pomona (North) station
Target entity description: Pomona (North) station is a commuter rail stop in Pomona, California, serving passengers on Metrolink’s San Bernardino Line.
  • A. Westwood station
    Westwood station is a New Jersey Transit commuter rail stop in Westwood, New Jersey, serving passengers on the Pascack Valley Line.
  • B. Poplar station
    Poplar station is a light rail stop serving the suburb of Mt. Lebanon in the Pittsburgh, Pennsylvania metropolitan area.
  • C. Parker Road Station
    Parker Road Station is a major Dallas Area Rapid Transit (DART) light rail terminus and park-and-ride facility serving the northern suburbs of the Dallas–Fort Worth metroplex.
  • D. Valley Road station
    Valley Road station is a small light rail stop on the MBTA's Mattapan trolley line in Milton, Massachusetts.
  • E. Sutherland Road station
    Sutherland Road station is a light rail stop on Boston's MBTA Green Line B branch serving the Brighton neighborhood.
  • F. None of above. chosen

Provenance (5 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_69c69f29bf3081909a146aec7755f185 completed March 27, 2026, 3:15 p.m.
NER Named-entity recognition batch_69c6f81cc5748190818443c48c9e3114 completed March 27, 2026, 9:35 p.m.
NED1 Entity disambiguation (via context triple) batch_69c84efebd7081908fd33580b399a39b completed March 28, 2026, 9:58 p.m.
NEDg Description generation batch_69c84ff2ac3881908c6319fcb9b49e52 completed March 28, 2026, 10:02 p.m.
NED2 Entity disambiguation (via description) batch_69c85075fe84819095a3dcf8f5c7c171 completed March 28, 2026, 10:04 p.m.
Created at: March 27, 2026, 3:47 p.m.