Triple

T13233486
Position Surface form Disambiguated ID Type / Status
Subject Los Angeles Railway E315079 entity
Predicate operatedLines P70721 FINISHED
Object B line
The B line was a streetcar route in the historic Los Angeles Railway system that served local passengers in Los Angeles during the early to mid-20th century.
 E1029636 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: B line | Statement: [Los Angeles Railway, operatedLines, B line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: B line
Context triple: [Los Angeles Railway, operatedLines, B line]
  • A. B line
    The B line is a route within the S-train urban rail network, serving as one of its designated passenger service lines.
  • B. B line
    The B line is a New York City Subway service that runs on the IND Sixth Avenue Line, providing weekday local and express service between the Bronx and Brooklyn via Manhattan.
  • C. Line B
    Line B is one of the main lines of the Prague Metro system, running east–west across the city and serving numerous central and residential districts.
  • D. Line B
    Line B is one of the main routes of the Orléans tramway system in France, providing urban light rail service across key districts of the city.
  • E. Line B
    Line B is one of the main tram routes in the Reims tramway network in Reims, France, providing urban public transport across key areas of the city.
  • 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: B line
Triple: [Los Angeles Railway, operatedLines, B line]
Generated description
The B line was a streetcar route in the historic Los Angeles Railway system that served local passengers in Los Angeles during the early to mid-20th century.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: B line
Target entity description: The B line was a streetcar route in the historic Los Angeles Railway system that served local passengers in Los Angeles during the early to mid-20th century.
  • A. B line
    The B line is a route within the S-train urban rail network, serving as one of its designated passenger service lines.
  • B. B line
    The B line is a New York City Subway service that runs on the IND Sixth Avenue Line, providing weekday local and express service between the Bronx and Brooklyn via Manhattan.
  • C. Line B
    Line B is one of the main tram routes in the Reims tramway network in Reims, France, providing urban public transport across key areas of the city.
  • D. Line B
    Line B is one of the main lines of the Prague Metro system, running east–west across the city and serving numerous central and residential districts.
  • E. Line B
    Line B is one of the main routes of the Orléans tramway system in France, providing urban light rail service across key districts of the city.
  • 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_69d806affc688190a25b6ccc588e9c72 completed April 9, 2026, 8:06 p.m.
NER Named-entity recognition batch_69d98d34ff288190bdb550a019b7a470 completed April 10, 2026, 11:52 p.m.
NED1 Entity disambiguation (via context triple) batch_69f6ff2dca2c81909cab1aa868ad575d completed May 3, 2026, 7:54 a.m.
NEDg Description generation batch_69f70476310c8190b13dc948c1f1ce95 completed May 3, 2026, 8:16 a.m.
NED2 Entity disambiguation (via description) batch_69f70578047c819089fc3044eceb4eac completed May 3, 2026, 8:21 a.m.
Created at: April 9, 2026, 9:22 p.m.