Triple

T607577
Position Surface form Disambiguated ID Type / Status
Subject Central Los Angeles E12026 entity
Predicate servedBy P82 FINISHED
Object Los Angeles Metro D Line
The Los Angeles Metro D Line is a heavy-rail subway line that runs primarily underground, connecting key neighborhoods and major destinations across central Los Angeles.
E11277 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 D Line | Statement: [Central Los Angeles, servedBy, Los Angeles Metro D Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Los Angeles Metro D Line
Context triple: [Central Los Angeles, servedBy, Los Angeles Metro D Line]
  • A. Metro J Line
    The Metro J Line is a bus rapid transit service in Los Angeles County that provides high-frequency, limited-stop connections along key north-south and east-west corridors.
  • B. LA Metro A Line
    The LA Metro A Line is a light rail line in Los Angeles County that connects downtown Los Angeles with several surrounding communities, including Pasadena and Long Beach.
  • C. 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.
  • D. LAX–Union Station route
    The LAX–Union Station route is a FlyAway Bus service that provides direct, frequent shuttle transportation between Los Angeles International Airport and downtown’s Union Station.
  • E. Metro C Line
    The Metro C Line is a light rail line in Los Angeles County that runs east–west, connecting Norwalk to Redondo Beach and serving key transit hubs including Los Angeles International Airport via shuttle.
  • 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 D Line
Triple: [Central Los Angeles, servedBy, Los Angeles Metro D Line]
Generated description
The Los Angeles Metro D Line is a heavy-rail subway line that runs primarily underground, connecting key neighborhoods and major destinations across central Los Angeles.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Los Angeles Metro D Line
Target entity description: The Los Angeles Metro D Line is a heavy-rail subway line that runs primarily underground, connecting key neighborhoods and major destinations across central Los Angeles.
  • A. Metro J Line
    The Metro J Line is a bus rapid transit service in Los Angeles County that provides high-frequency, limited-stop connections along key north-south and east-west corridors.
  • B. LA Metro A Line
    The LA Metro A Line is a light rail line in Los Angeles County that connects downtown Los Angeles with several surrounding communities, including Pasadena and Long Beach.
  • C. Los Angeles Metro Rail chosen
    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.
  • D. LAX–Union Station route
    The LAX–Union Station route is a FlyAway Bus service that provides direct, frequent shuttle transportation between Los Angeles International Airport and downtown’s Union Station.
  • E. Metro C Line
    The Metro C Line is a light rail line in Los Angeles County that runs east–west, connecting Norwalk to Redondo Beach and serving key transit hubs including Los Angeles International Airport via shuttle.
  • 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_69a493309df48190a327f748e88049a6 completed March 1, 2026, 7:27 p.m.
NER Named-entity recognition batch_69a49df34abc8190a578c8c2ab3d28e4 completed March 1, 2026, 8:13 p.m.
NED1 Entity disambiguation (via context triple) batch_69a52eab1dc88190892cf500465db72a completed March 2, 2026, 6:31 a.m.
NEDg Description generation batch_69a52fec875c8190a605e76c95e8b9b4 completed March 2, 2026, 6:36 a.m.
NED2 Entity disambiguation (via description) batch_69a530c776a88190846e073ea0b97bfb completed March 2, 2026, 6:40 a.m.
Created at: March 1, 2026, 7:35 p.m.