Triple

T7527082
Position Surface form Disambiguated ID Type / Status
Subject Metrolink San Bernardino Line E177919 entity
Predicate hasStation P35 FINISHED
Object Rancho Cucamonga station
Rancho Cucamonga station is a commuter rail stop in Rancho Cucamonga, California, serving passengers on Southern California’s Metrolink network.
 E679934 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: Rancho Cucamonga station | Statement: [Metrolink San Bernardino Line, hasStation, Rancho Cucamonga station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Rancho Cucamonga station
Context triple: [Metrolink San Bernardino Line, hasStation, Rancho Cucamonga station]
  • A. Culver City station
    Culver City station is a light rail transit stop in Culver City, California, serving as a key node on Los Angeles Metro’s E Line.
  • B. 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.
  • C. 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.
  • D. Irvine station
    Irvine station is a major multimodal transportation hub in Irvine, California, serving commuter rail and bus services for the surrounding region.
  • E. Santa Ana station
    Santa Ana station is a major intermodal rail and bus transit hub in Santa Ana, California, serving regional commuter rail and Amtrak 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: Rancho Cucamonga station
Triple: [Metrolink San Bernardino Line, hasStation, Rancho Cucamonga station]
Generated description
Rancho Cucamonga station is a commuter rail stop in Rancho Cucamonga, California, serving passengers on Southern California’s Metrolink network.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Rancho Cucamonga station
Target entity description: Rancho Cucamonga station is a commuter rail stop in Rancho Cucamonga, California, serving passengers on Southern California’s Metrolink network.
  • A. Culver City station
    Culver City station is a light rail transit stop in Culver City, California, serving as a key node on Los Angeles Metro’s E Line.
  • B. 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.
  • C. 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.
  • D. Irvine station
    Irvine station is a major multimodal transportation hub in Irvine, California, serving commuter rail and bus services for the surrounding region.
  • E. Santa Ana station
    Santa Ana station is a major intermodal rail and bus transit hub in Santa Ana, California, serving regional commuter rail and Amtrak services.
  • 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_69c89a834d4c8190acf521fcff884109 completed March 29, 2026, 3:20 a.m.
NEDg Description generation batch_69c89d9e0ab881909008c68ad1ca3151 completed March 29, 2026, 3:33 a.m.
NED2 Entity disambiguation (via description) batch_69c89e3514d48190889034c27d85c31e completed March 29, 2026, 3:36 a.m.
Created at: March 27, 2026, 3:47 p.m.