Triple

T1929818
Position Surface form Disambiguated ID Type / Status
Subject Metro K Line E40917 entity
Predicate formerName P65 FINISHED
Object Crenshaw/LAX Line
The Crenshaw/LAX Line, now known as the Metro K Line, is a Los Angeles Metro Rail light rail route serving the Crenshaw Corridor and providing key transit access to the area around Los Angeles International Airport.
E266717 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: Crenshaw/LAX Line | Statement: [Metro K Line, formerName, Crenshaw/LAX Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Crenshaw/LAX Line
Context triple: [Metro K Line, formerName, Crenshaw/LAX Line]
  • A. L Line (Los Angeles Metro)
    The L Line was a light rail route in the Los Angeles Metro Rail system that connected East Los Angeles and the San Gabriel Valley to downtown and northeast Los Angeles before being restructured into other lines.
  • B. 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.
  • C. 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.
  • D. Metro E Line
    The Metro E Line is a light rail line in Los Angeles that runs between East Los Angeles and Santa Monica, providing a major east–west transit corridor across the city.
  • E. 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.
  • 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: Crenshaw/LAX Line
Triple: [Metro K Line, formerName, Crenshaw/LAX Line]
Generated description
The Crenshaw/LAX Line, now known as the Metro K Line, is a Los Angeles Metro Rail light rail route serving the Crenshaw Corridor and providing key transit access to the area around Los Angeles International Airport.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Crenshaw/LAX Line
Target entity description: The Crenshaw/LAX Line, now known as the Metro K Line, is a Los Angeles Metro Rail light rail route serving the Crenshaw Corridor and providing key transit access to the area around Los Angeles International Airport.
  • A. L Line (Los Angeles Metro)
    The L Line was a light rail route in the Los Angeles Metro Rail system that connected East Los Angeles and the San Gabriel Valley to downtown and northeast Los Angeles before being restructured into other lines.
  • B. 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.
  • C. 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.
  • D. Metro E Line
    The Metro E Line is a light rail line in Los Angeles that runs between East Los Angeles and Santa Monica, providing a major east–west transit corridor across the city.
  • E. 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.
  • 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_69a8864711648190b07bed24ed76258e completed March 4, 2026, 7:21 p.m.
NER Named-entity recognition batch_69abb266dcb4819090be83556615d0db completed March 7, 2026, 5:06 a.m.
NED1 Entity disambiguation (via context triple) batch_69aebf046d388190a0224f76a4e13e08 completed March 9, 2026, 12:37 p.m.
NEDg Description generation batch_69aedd5707d08190ac5b101844118730 completed March 9, 2026, 2:46 p.m.
NED2 Entity disambiguation (via description) batch_69aee8d85bac819080d9bf12883156e3 completed March 9, 2026, 3:35 p.m.
Created at: March 4, 2026, 7:35 p.m.