Triple

T7710844
Position Surface form Disambiguated ID Type / Status
Subject Upland E174745 entity
Predicate hasPublicTransit P522 FINISHED
Object Metrolink San Bernardino Line station
Metrolink San Bernardino Line station is a commuter rail stop in Upland, California, serving passengers traveling between the Inland Empire and Los Angeles.
 E683988 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: [Upland, hasPublicTransit, 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: [Upland, hasPublicTransit, Metrolink San Bernardino Line station]
  • A. 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.
  • B. Metrolink San Bernardino Line station
    The Metrolink San Bernardino Line station in Claremont, California is a commuter rail stop serving passengers traveling between the Inland Empire and downtown Los Angeles.
  • C. 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.
  • D. Metrolink Orange station
    Metrolink Orange station is a commuter rail station in Orange, California, serving as a stop on the Metrolink network for regional passenger service.
  • E. 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.
  • 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: [Upland, hasPublicTransit, Metrolink San Bernardino Line station]
Generated description
Metrolink San Bernardino Line station is a commuter rail stop in Upland, California, serving passengers traveling between the Inland Empire and Los Angeles.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Metrolink San Bernardino Line station
Target entity description: Metrolink San Bernardino Line station is a commuter rail stop in Upland, California, serving passengers traveling between the Inland Empire and Los Angeles.
  • A. 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.
  • B. Metrolink San Bernardino Line station
    The Metrolink San Bernardino Line station in Claremont, California is a commuter rail stop serving passengers traveling between the Inland Empire and downtown Los Angeles.
  • C. 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.
  • D. Metrolink Orange station
    Metrolink Orange station is a commuter rail station in Orange, California, serving as a stop on the Metrolink network for regional passenger service.
  • E. 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.
  • 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_69c6995b3e8c8190833108f883d5f53c completed March 27, 2026, 2:51 p.m.
NER Named-entity recognition batch_69c702ad6b788190892b96ab523d111f completed March 27, 2026, 10:20 p.m.
NED1 Entity disambiguation (via context triple) batch_69c8b505c7f88190ac058c1a27d758ca completed March 29, 2026, 5:13 a.m.
NEDg Description generation batch_69c8b5fbda848190b09172740371fd47 completed March 29, 2026, 5:17 a.m.
NED2 Entity disambiguation (via description) batch_69c8b675ddb0819085d79dbba560d08f completed March 29, 2026, 5:19 a.m.
Created at: March 27, 2026, 4:04 p.m.