Triple

T11121208
Position Surface form Disambiguated ID Type / Status
Subject South Pasadena, California E263018 entity
Predicate hasRailStation P726 FINISHED
Object South Pasadena station
South Pasadena station is a light rail transit stop in South Pasadena, California, serving Los Angeles Metro Rail’s A Line.
 E906404 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: South Pasadena station | Statement: [South Pasadena, California, hasRailStation, South Pasadena station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: South Pasadena station
Context triple: [South Pasadena, California, hasRailStation, South Pasadena station]
  • A. Maywood station
    Maywood station is a commuter rail stop in Maywood, Illinois, serving Metra's Union Pacific West Line in the Chicago metropolitan area.
  • B. North Hollywood station
    North Hollywood station is a major Los Angeles Metro Rail hub in the San Fernando Valley that serves as a key transfer point between the subway system and multiple bus and rapid transit lines.
  • C. Baldwin Park station
    Baldwin Park station is a commuter rail stop in Baldwin Park, California, served by Metrolink trains on the San Bernardino Line.
  • D. Glendale station
    Glendale station is a commuter rail station in Glendale, California, serving Metrolink trains on the Ventura County Line and connecting the city to the greater Los Angeles area.
  • E. Long Beach station
    Long Beach station is a Long Island Rail Road commuter rail terminal located in the city of Long Beach on the south shore of Long Island, New York.
  • 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: South Pasadena station
Triple: [South Pasadena, California, hasRailStation, South Pasadena station]
Generated description
South Pasadena station is a light rail transit stop in South Pasadena, California, serving Los Angeles Metro Rail’s A Line.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: South Pasadena station
Target entity description: South Pasadena station is a light rail transit stop in South Pasadena, California, serving Los Angeles Metro Rail’s A Line.
  • A. Maywood station
    Maywood station is a commuter rail stop in Maywood, Illinois, serving Metra's Union Pacific West Line in the Chicago metropolitan area.
  • B. North Hollywood station
    North Hollywood station is a major Los Angeles Metro Rail hub in the San Fernando Valley that serves as a key transfer point between the subway system and multiple bus and rapid transit lines.
  • C. Baldwin Park station
    Baldwin Park station is a commuter rail stop in Baldwin Park, California, served by Metrolink trains on the San Bernardino Line.
  • D. Glendale station
    Glendale station is a commuter rail station in Glendale, California, serving Metrolink trains on the Ventura County Line and connecting the city to the greater Los Angeles area.
  • E. Long Beach station
    Long Beach station is a Long Island Rail Road commuter rail terminal located in the city of Long Beach on the south shore of Long Island, New York.
  • 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_69d6aa9b46cc8190b19f9f0cc45bf322 completed April 8, 2026, 7:20 p.m.
NER Named-entity recognition batch_69d79af911b881908168f23a4918231c completed April 9, 2026, 12:26 p.m.
NED1 Entity disambiguation (via context triple) batch_69e42d8406988190837a16d7ad8048d1 completed April 19, 2026, 1:19 a.m.
NEDg Description generation batch_69e4374700b881908ebb185ae020487b completed April 19, 2026, 2 a.m.
NED2 Entity disambiguation (via description) batch_69e4399385c08190852c3cbd730a1f11 completed April 19, 2026, 2:10 a.m.
Created at: April 8, 2026, 9:28 p.m.