Triple

T21699620
Position Surface form Disambiguated ID Type / Status
Subject LA Waterfront Red Car E535619 entity
Predicate terminus P388 FINISHED
Object Downtown San Pedro station — NE NERFINISHED

How this triple was built (3 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: Downtown San Pedro station | Statement: [LA Waterfront Red Car, terminus, Downtown San Pedro station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Downtown San Pedro station
Context triple: [LA Waterfront Red Car, terminus, Downtown San Pedro station]
  • A. 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.
  • B. San Clemente Pier station
    San Clemente Pier station is a coastal passenger rail stop in San Clemente, California, located adjacent to the San Clemente Pier and serving Amtrak and Metrolink trains.
  • C. Redondo Beach station
    Redondo Beach station is a light rail transit station in Redondo Beach, California, serving as the western terminus of Los Angeles Metro's C Line.
  • D. Carpinteria station
    Carpinteria station is a small Amtrak passenger rail stop in Carpinteria, California, serving the Pacific Surfliner route along the Southern California coast.
  • E. Camarillo station
    Camarillo station is a passenger rail station in Camarillo, California, serving regional commuter and intercity trains.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Downtown San Pedro station
Target entity description: Downtown San Pedro station was the southern terminal stop of the historic LA Waterfront Red Car trolley line serving the San Pedro waterfront area in Los Angeles.
  • A. 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.
  • B. San Clemente Pier station
    San Clemente Pier station is a coastal passenger rail stop in San Clemente, California, located adjacent to the San Clemente Pier and serving Amtrak and Metrolink trains.
  • C. Redondo Beach station
    Redondo Beach station is a light rail transit station in Redondo Beach, California, serving as the western terminus of Los Angeles Metro's C Line.
  • D. Carpinteria station
    Carpinteria station is a small Amtrak passenger rail stop in Carpinteria, California, serving the Pacific Surfliner route along the Southern California coast.
  • E. Camarillo station
    Camarillo station is a passenger rail station in Camarillo, California, serving regional commuter and intercity trains.
  • F. None of above. chosen

Provenance (2 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_69e0c46a6ee481908836e1420fb78c9b completed April 16, 2026, 11:13 a.m.
NER Named-entity recognition batch_69ef9b7de9888190bbca7717a32f9888 completed April 27, 2026, 5:23 p.m.
Created at: April 16, 2026, 6:45 p.m.