Triple

T1756117
Position Surface form Disambiguated ID Type / Status
Subject Metro Rail (Los Angeles) E38551 entity
Predicate hasLine P35 FINISHED
Object D Line (Los Angeles Metro)
The D Line is a heavy-rail subway route in the Los Angeles Metro system that runs primarily beneath Wilshire Boulevard, connecting downtown Los Angeles with the city’s westside.
 E203637 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: D Line (Los Angeles Metro) | Statement: [Metro Rail (Los Angeles), hasLine, D Line (Los Angeles Metro)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: D Line (Los Angeles Metro)
Context triple: [Metro Rail (Los Angeles), hasLine, D Line (Los Angeles Metro)]
  • 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. 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.
  • 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. 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.
  • 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: D Line (Los Angeles Metro)
Triple: [Metro Rail (Los Angeles), hasLine, D Line (Los Angeles Metro)]
Generated description
The D Line is a heavy-rail subway route in the Los Angeles Metro system that runs primarily beneath Wilshire Boulevard, connecting downtown Los Angeles with the city’s westside.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: D Line (Los Angeles Metro)
Target entity description: The D Line is a heavy-rail subway route in the Los Angeles Metro system that runs primarily beneath Wilshire Boulevard, connecting downtown Los Angeles with the city’s westside.
  • 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. 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.
  • 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. 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.
  • 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_69a8862bdb2081908aefe831c8aa8017 completed March 4, 2026, 7:21 p.m.
NER Named-entity recognition batch_69aa643b623081908064be75758ec5de completed March 6, 2026, 5:20 a.m.
NED1 Entity disambiguation (via context triple) batch_69adbf4db1c48190a96f137db3e2f32c completed March 8, 2026, 6:26 p.m.
NEDg Description generation batch_69adc0a3fdd88190b0ffa98db1b5cf80 completed March 8, 2026, 6:32 p.m.
NED2 Entity disambiguation (via description) batch_69adc12c894881909c9a82fc9e363a41 completed March 8, 2026, 6:34 p.m.
Created at: March 4, 2026, 7:31 p.m.