Triple

T4714051
Position Surface form Disambiguated ID Type / Status
Subject Pomona E104588 entity
Predicate hasTransportation P105 FINISHED
Object Metrolink San Bernardino Line station
The Metrolink San Bernardino Line station in Pomona is a commuter rail stop in Southern California that connects the city to Los Angeles and other Inland Empire destinations along Metrolink’s San Bernardino Line.
 E463408 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: Metrolink San Bernardino Line station | Statement: [Pomona, hasTransportation, Metrolink San Bernardino Line station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Metrolink San Bernardino Line station
Context triple: [Pomona, hasTransportation, Metrolink San Bernardino Line station]
  • A. Metrolink San Bernardino Line Fontana station
    Metrolink San Bernardino Line Fontana station is a commuter rail stop in Fontana, California, providing regional rail service between the Inland Empire and Los Angeles.
  • B. San Bernardino–Downtown station
    San Bernardino–Downtown station is a commuter rail and transit hub in downtown San Bernardino, California, serving Metrolink trains and local bus connections.
  • C. Downtown Inglewood station
    Downtown Inglewood station is an elevated Los Angeles Metro Rail stop in Inglewood, California, serving the K Line and providing access to the city’s central business district.
  • D. Fullerton station
    Fullerton station is a major Chicago 'L' transit hub in the Lincoln Park neighborhood, serving multiple CTA lines and providing access to DePaul University and the surrounding area.
  • E. Balboa Park station
    Balboa Park station is a major multimodal transit hub in San Francisco serving BART and Muni Metro lines.
  • 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: Metrolink San Bernardino Line station
Triple: [Pomona, hasTransportation, Metrolink San Bernardino Line station]
Generated description
The Metrolink San Bernardino Line station in Pomona is a commuter rail stop in Southern California that connects the city to Los Angeles and other Inland Empire destinations along Metrolink’s San Bernardino Line.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Metrolink San Bernardino Line station
Target entity description: The Metrolink San Bernardino Line station in Pomona is a commuter rail stop in Southern California that connects the city to Los Angeles and other Inland Empire destinations along Metrolink’s San Bernardino Line.
  • A. Metrolink San Bernardino Line Fontana station
    Metrolink San Bernardino Line Fontana station is a commuter rail stop in Fontana, California, providing regional rail service between the Inland Empire and Los Angeles.
  • B. San Bernardino–Downtown station
    San Bernardino–Downtown station is a commuter rail and transit hub in downtown San Bernardino, California, serving Metrolink trains and local bus connections.
  • C. Downtown Inglewood station
    Downtown Inglewood station is an elevated Los Angeles Metro Rail stop in Inglewood, California, serving the K Line and providing access to the city’s central business district.
  • D. Fullerton station
    Fullerton station is a major Chicago 'L' transit hub in the Lincoln Park neighborhood, serving multiple CTA lines and providing access to DePaul University and the surrounding area.
  • E. Balboa Park station
    Balboa Park station is a major multimodal transit hub in San Francisco serving BART and Muni Metro lines.
  • 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_69bd43ec4a348190bc41afae43375e71 completed March 20, 2026, 12:56 p.m.
NER Named-entity recognition batch_69bd6407659481908bcdc063d7b3da00 completed March 20, 2026, 3:13 p.m.
NED1 Entity disambiguation (via context triple) batch_69be108002e08190b13856f2af135bfc completed March 21, 2026, 3:29 a.m.
NEDg Description generation batch_69be1196fcb08190a151b31204045fa4 completed March 21, 2026, 3:33 a.m.
NED2 Entity disambiguation (via description) batch_69be121448ec8190a29f6d78049002df completed March 21, 2026, 3:35 a.m.
Created at: March 20, 2026, 1:18 p.m.