Triple

T647711
Position Surface form Disambiguated ID Type / Status
Subject Los Angeles Metro Rail E11277 entity
Predicate hasLine P35 FINISHED
Object D Line
The D Line is a heavy-rail subway route in the Los Angeles Metro system that runs primarily beneath Wilshire Boulevard, serving key neighborhoods between downtown Los Angeles and the city’s west side.
 E81527 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 | Statement: [Los Angeles Metro Rail, hasLine, D Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: D Line
Context triple: [Los Angeles Metro Rail, hasLine, D Line]
  • A. C Line
    The C Line is a light rail route in the Los Angeles Metro Rail system that runs primarily along the I-105 freeway corridor, connecting coastal and inland communities in the South Bay region.
  • B. B Line
    The B Line is a heavy-rail subway line in the Los Angeles Metro Rail system that runs primarily beneath Hollywood and Downtown Los Angeles.
  • C. Valley Lines
    Valley Lines is a suburban rail network serving Cardiff and the surrounding South Wales Valleys.
  • D. Premier Line
    Premier Line is the nickname of the London and North Western Railway, historically one of Britain’s largest and most prestigious railway companies.
  • E. T Line
    The T Line is a streetcar-style light rail route within the Sound Transit Link system serving Tacoma, Washington.
  • 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
Triple: [Los Angeles Metro Rail, hasLine, D Line]
Generated description
The D Line is a heavy-rail subway route in the Los Angeles Metro system that runs primarily beneath Wilshire Boulevard, serving key neighborhoods between downtown Los Angeles and the city’s west side.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: D Line
Target entity description: The D Line is a heavy-rail subway route in the Los Angeles Metro system that runs primarily beneath Wilshire Boulevard, serving key neighborhoods between downtown Los Angeles and the city’s west side.
  • A. C Line
    The C Line is a light rail route in the Los Angeles Metro Rail system that runs primarily along the I-105 freeway corridor, connecting coastal and inland communities in the South Bay region.
  • B. B Line
    The B Line is a heavy-rail subway line in the Los Angeles Metro Rail system that runs primarily beneath Hollywood and Downtown Los Angeles.
  • C. Valley Lines
    Valley Lines is a suburban rail network serving Cardiff and the surrounding South Wales Valleys.
  • D. Premier Line
    Premier Line is the nickname of the London and North Western Railway, historically one of Britain’s largest and most prestigious railway companies.
  • E. T Line
    The T Line is a streetcar-style light rail route within the Sound Transit Link system serving Tacoma, Washington.
  • 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_69a493266a2881909daf4c40f719dee8 completed March 1, 2026, 7:27 p.m.
NER Named-entity recognition batch_69a49f1cb24481909d3b41a56b29dee9 completed March 1, 2026, 8:18 p.m.
NED1 Entity disambiguation (via context triple) batch_69a58a716de88190854e13fb5143b9b3 completed March 2, 2026, 1:02 p.m.
NEDg Description generation batch_69a58f0211cc81908da2813dd0c01be7 completed March 2, 2026, 1:22 p.m.
NED2 Entity disambiguation (via description) batch_69a58f58dfa88190a29ba56270267d05 completed March 2, 2026, 1:23 p.m.
Created at: March 1, 2026, 7:36 p.m.