Triple

T4971268
Position Surface form Disambiguated ID Type / Status
Subject Civic Center/Grand Park station E111654 entity
Predicate category P87 FINISHED
Object Los Angeles Metro Rail B Line stations
Los Angeles Metro Rail B Line stations are the underground and surface transit stops that serve the B Line (formerly Red Line) heavy-rail subway corridor across key neighborhoods and destinations in Los Angeles.
 E31233 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: Los Angeles Metro Rail B Line stations | Statement: [Civic Center/Grand Park station, category, Los Angeles Metro Rail B Line stations]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Los Angeles Metro Rail B Line stations
Context triple: [Civic Center/Grand Park station, category, Los Angeles Metro Rail B Line stations]
  • A. Universal City/Studio City station
    Universal City/Studio City station is a Los Angeles Metro Rail subway stop serving the Universal City and Studio City areas near Universal Studios Hollywood.
  • B. 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.
  • C. 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.
  • D. Los Angeles Metro Rail
    Los Angeles Metro Rail is a rapid transit system serving Los Angeles County, California, consisting of multiple light rail and subway lines that connect key neighborhoods, business districts, and regional destinations.
  • 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: Los Angeles Metro Rail B Line stations
Triple: [Civic Center/Grand Park station, category, Los Angeles Metro Rail B Line stations]
Generated description
Los Angeles Metro Rail B Line stations are the underground and surface transit stops that serve the B Line (formerly Red Line) heavy-rail subway corridor across key neighborhoods and destinations in Los Angeles.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Los Angeles Metro Rail B Line stations
Target entity description: Los Angeles Metro Rail B Line stations are the underground and surface transit stops that serve the B Line (formerly Red Line) heavy-rail subway corridor across key neighborhoods and destinations in Los Angeles.
  • A. Universal City/Studio City station chosen
    Universal City/Studio City station is a Los Angeles Metro Rail subway stop serving the Universal City and Studio City areas near Universal Studios Hollywood.
  • B. 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.
  • C. 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.
  • D. Los Angeles Metro Rail
    Los Angeles Metro Rail is a rapid transit system serving Los Angeles County, California, consisting of multiple light rail and subway lines that connect key neighborhoods, business districts, and regional destinations.
  • 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.

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_69bd441a0eb481908050fa4273b19eae completed March 20, 2026, 12:56 p.m.
NER Named-entity recognition batch_69bd7213bf0081909b3c496f1804dc4c completed March 20, 2026, 4:13 p.m.
NED1 Entity disambiguation (via context triple) batch_69be81fa9108819089a6258e3a88f0cb completed March 21, 2026, 11:33 a.m.
NEDg Description generation batch_69be8386d2fc8190a450b42dd5ac6963 completed March 21, 2026, 11:39 a.m.
NED2 Entity disambiguation (via description) batch_69be841d148881908aa53953bd2eb024 completed March 21, 2026, 11:42 a.m.
Created at: March 20, 2026, 1:33 p.m.