Triple

T14027879
Position Surface form Disambiguated ID Type / Status
Subject E Line (Los Angeles Metro) E337509 entity
Predicate lineLetter P5539 FINISHED
Object E
E is a light rail line in the Los Angeles Metro Rail system that runs east–west across the city, connecting key neighborhoods and transit hubs.
 E1076455 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: E | Statement: [E Line (Los Angeles Metro), lineLetter, E]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: E
Context triple: [E Line (Los Angeles Metro), lineLetter, E]
  • A. E
    E is the letter designation for the E branch of Boston’s MBTA Green Line light rail service.
  • B. E
    E is the stage name of Mark Oliver Everett, the singer-songwriter and multi-instrumentalist best known as the frontman of the indie rock band Eels.
  • C. E
    E is the given name of Cai E, a prominent early 20th-century Chinese revolutionary leader and military commander known for opposing Yuan Shikai’s attempt to restore monarchy.
  • D. E
    The E is a New York City Subway line that runs between Queens and Manhattan, providing a key rapid transit connection used by AirTrain JFK passengers traveling to and from the city.
  • E. E
    E is a rapid transit line of the Buenos Aires Underground system in Argentina.
  • 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: E
Triple: [E Line (Los Angeles Metro), lineLetter, E]
Generated description
E is a light rail line in the Los Angeles Metro Rail system that runs east–west across the city, connecting key neighborhoods and transit hubs.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: E
Target entity description: E is a light rail line in the Los Angeles Metro Rail system that runs east–west across the city, connecting key neighborhoods and transit hubs.
  • A. E
    The E is a New York City Subway line that runs between Queens and Manhattan, providing a key rapid transit connection used by AirTrain JFK passengers traveling to and from the city.
  • B. E
    E is the letter designation for the E branch of Boston’s MBTA Green Line light rail service.
  • C. E
    E is the stage name of Mark Oliver Everett, the singer-songwriter and multi-instrumentalist best known as the frontman of the indie rock band Eels.
  • D. E
    E is a rapid transit line of the Buenos Aires Underground system in Argentina.
  • E. E
    E is the given name of Cai E, a prominent early 20th-century Chinese revolutionary leader and military commander known for opposing Yuan Shikai’s attempt to restore monarchy.
  • 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_69d81c6543a48190bd5ba93d7419e797 completed April 9, 2026, 9:38 p.m.
NER Named-entity recognition batch_69de2fa830ac81908cb7df7c9e81e42a completed April 14, 2026, 12:14 p.m.
NED1 Entity disambiguation (via context triple) batch_69fbc333b7a08190b4f121fef69f7513 completed May 6, 2026, 10:39 p.m.
NEDg Description generation batch_69fc438f85308190ae917812686006f6 completed May 7, 2026, 7:47 a.m.
NED2 Entity disambiguation (via description) batch_69fc444630408190b368611373265973 completed May 7, 2026, 7:50 a.m.
Created at: April 9, 2026, 10:20 p.m.