Triple

T2653940
Position Surface form Disambiguated ID Type / Status
Subject Fontana, California E53963 entity
Predicate hasCommuterRailStation P105 FINISHED
Object 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.
 E286782 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 Fontana station | Statement: [Fontana, California, hasCommuterRailStation, Metrolink San Bernardino Line Fontana station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Metrolink San Bernardino Line Fontana station
Context triple: [Fontana, California, hasCommuterRailStation, Metrolink San Bernardino Line Fontana station]
  • A. 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.
  • 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. 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. 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.
  • E. Metrolink San Bernardino Line
    The Metrolink San Bernardino Line is a Southern California commuter rail route connecting San Bernardino and surrounding Inland Empire communities with downtown Los Angeles.
  • 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 Fontana station
Triple: [Fontana, California, hasCommuterRailStation, Metrolink San Bernardino Line Fontana station]
Generated description
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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Metrolink San Bernardino Line Fontana station
Target entity description: 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.
  • A. 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.
  • 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. 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. 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.
  • E. Metrolink San Bernardino Line
    The Metrolink San Bernardino Line is a Southern California commuter rail route connecting San Bernardino and surrounding Inland Empire communities with downtown Los Angeles.
  • 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_69ab495e192081909c77b622e8e7e15a completed March 6, 2026, 9:38 p.m.
NER Named-entity recognition batch_69abd932a35881909568839589f12062 completed March 7, 2026, 7:52 a.m.
NED1 Entity disambiguation (via context triple) batch_69af98d0dbd08190a317dfe1844840c5 completed March 10, 2026, 4:06 a.m.
NEDg Description generation batch_69af9a41c69c8190b99bcad7098e68fe completed March 10, 2026, 4:12 a.m.
NED2 Entity disambiguation (via description) batch_69af9aaeedcc8190901da0fe37e7801d completed March 10, 2026, 4:14 a.m.
Created at: March 6, 2026, 9:53 p.m.