Triple

T5189728
Position Surface form Disambiguated ID Type / Status
Subject Metrolink Inland Empire–Orange County Line E117120 entity
Predicate usesStation P726 FINISHED
Object Riverside–La Sierra station
Riverside–La Sierra station is a commuter rail station in Riverside, California, serving Metrolink passengers traveling within the Inland Empire and to Orange County.
 E504864 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: Riverside–La Sierra station | Statement: [Metrolink Inland Empire–Orange County Line, usesStation, Riverside–La Sierra station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Riverside–La Sierra station
Context triple: [Metrolink Inland Empire–Orange County Line, usesStation, Riverside–La Sierra station]
  • A. Santa Clarita station
    Santa Clarita station is a commuter rail stop in Santa Clarita, California, serving passengers on Metrolink’s Antelope Valley Line between Los Angeles and the high desert communities to the north.
  • B. Santa Ana station
    Santa Ana station is an underground interchange stop on the Santiago Metro in Chile, serving as a key connection point between multiple lines in the city’s rapid transit network.
  • C. 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.
  • 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. 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: Riverside–La Sierra station
Triple: [Metrolink Inland Empire–Orange County Line, usesStation, Riverside–La Sierra station]
Generated description
Riverside–La Sierra station is a commuter rail station in Riverside, California, serving Metrolink passengers traveling within the Inland Empire and to Orange County.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Riverside–La Sierra station
Target entity description: Riverside–La Sierra station is a commuter rail station in Riverside, California, serving Metrolink passengers traveling within the Inland Empire and to Orange County.
  • A. Santa Clarita station
    Santa Clarita station is a commuter rail stop in Santa Clarita, California, serving passengers on Metrolink’s Antelope Valley Line between Los Angeles and the high desert communities to the north.
  • B. Santa Ana station
    Santa Ana station is an underground interchange stop on the Santiago Metro in Chile, serving as a key connection point between multiple lines in the city’s rapid transit network.
  • C. 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.
  • 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. 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_69bd44620ff48190bcac01782107a397 completed March 20, 2026, 12:58 p.m.
NER Named-entity recognition batch_69bd79c732b48190af62dfffcbc5e3a6 completed March 20, 2026, 4:45 p.m.
NED1 Entity disambiguation (via context triple) batch_69bef7f9a1c48190939a5073bd779be6 completed March 21, 2026, 7:56 p.m.
NEDg Description generation batch_69bef9410f78819099cb3f760593a5d5 completed March 21, 2026, 8:02 p.m.
NED2 Entity disambiguation (via description) batch_69bef98bc8b08190b584830325d95be6 completed March 21, 2026, 8:03 p.m.
Created at: March 20, 2026, 1:46 p.m.