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
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.
 E1496972 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: 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.
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: Downtown San Pedro station
Triple: [LA Waterfront Red Car, terminus, Downtown San Pedro station]
Generated 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.
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 (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_69e0c46a6ee481908836e1420fb78c9b completed April 16, 2026, 11:13 a.m.
NER Named-entity recognition batch_69ef9b7de9888190bbca7717a32f9888 completed April 27, 2026, 5:23 p.m.
NED1 Entity disambiguation (via context triple) batch_6a0a1e2755708190afd098c5c673c1f0 completed May 17, 2026, 7:59 p.m.
NEDg Description generation batch_6a0a1f457fc48190a36c6cf8934fd5d3 completed May 17, 2026, 8:04 p.m.
NED2 Entity disambiguation (via description) batch_6a0a1fc13900819098ee66684dfdff95 completed May 17, 2026, 8:06 p.m.
Created at: April 16, 2026, 6:45 p.m.