Triple

T5226497
Position Surface form Disambiguated ID Type / Status
Subject Metrolink 91/Perris Valley Line E118000 entity
Predicate hasStation P35 FINISHED
Object Perris–Downtown station
Perris–Downtown station is a commuter rail stop in Perris, California, serving as a key terminal and transit hub for Metrolink passengers in the Inland Empire.
 E509508 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: Perris–Downtown station | Statement: [Metrolink 91/Perris Valley Line, hasStation, Perris–Downtown station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Perris–Downtown station
Context triple: [Metrolink 91/Perris Valley Line, hasStation, Perris–Downtown station]
  • A. Perris–South station
    Perris–South station is a commuter rail station in Perris, California, serving as the southern endpoint of Metrolink service in the Perris Valley area.
  • B. 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.
  • C. Fullerton station
    Fullerton station is a major intermodal rail hub in Fullerton, California, serving Amtrak, Metrolink commuter trains, and local transit connections.
  • D. 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.
  • E. Riverside–Downtown station
    Riverside–Downtown station is a major intermodal transit hub in Riverside, California, serving multiple Metrolink commuter rail lines and connecting bus services.
  • 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: Perris–Downtown station
Triple: [Metrolink 91/Perris Valley Line, hasStation, Perris–Downtown station]
Generated description
Perris–Downtown station is a commuter rail stop in Perris, California, serving as a key terminal and transit hub for Metrolink passengers in the Inland Empire.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Perris–Downtown station
Target entity description: Perris–Downtown station is a commuter rail stop in Perris, California, serving as a key terminal and transit hub for Metrolink passengers in the Inland Empire.
  • A. Perris–South station chosen
    Perris–South station is a commuter rail station in Perris, California, serving as the southern endpoint of Metrolink service in the Perris Valley area.
  • B. 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.
  • C. Fullerton station
    Fullerton station is a major intermodal rail hub in Fullerton, California, serving Amtrak, Metrolink commuter trains, and local transit connections.
  • D. 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.
  • E. Riverside–Downtown station
    Riverside–Downtown station is a major intermodal transit hub in Riverside, California, serving multiple Metrolink commuter rail lines and connecting bus services.
  • F. None of above.

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_69bd4466fb8c819083b806a79414d7e4 completed March 20, 2026, 12:58 p.m.
NER Named-entity recognition batch_69bd7adc9be081909903b9f844c3d146 completed March 20, 2026, 4:50 p.m.
NED1 Entity disambiguation (via context triple) batch_69bf21a819f08190a67a92d8afa82e22 completed March 21, 2026, 10:54 p.m.
NEDg Description generation batch_69bf228956d481909e9f3c11f4597cce completed March 21, 2026, 10:58 p.m.
NED2 Entity disambiguation (via description) batch_69bf230b571481909f76ada72d94c8d8 completed March 21, 2026, 11 p.m.
Created at: March 20, 2026, 1:48 p.m.