Triple

T8599482
Position Surface form Disambiguated ID Type / Status
Subject D Line (Los Angeles Metro) E203637 entity
Predicate downtownTrunkSegment P17428 FINISHED
Object Union Station–Wilshire/Vermont
Union Station–Wilshire/Vermont is the central shared trunk segment of Los Angeles Metro’s D Line, running between Union Station downtown and the Wilshire/Vermont station.
E748399 NE FINISHED

How this triple was built (5 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: Union Station–Wilshire/Vermont | Statement: [D Line (Los Angeles Metro), downtownTrunkSegment, Union Station–Wilshire/Vermont]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Union Station–Wilshire/Vermont
Context triple: [D Line (Los Angeles Metro), downtownTrunkSegment, Union Station–Wilshire/Vermont]
  • A. Wilshire/Vermont station
    Wilshire/Vermont station is a major underground Los Angeles Metro Rail hub in Koreatown where multiple lines intersect, serving as a key transfer point for commuters.
  • B. Union Station (Los Angeles)
    Union Station (Los Angeles) is the city’s main intermodal transportation terminal, serving as a central hub for regional rail, subway, light rail, and bus services.
  • C. Wilshire/Western station
    Wilshire/Western station is an underground rapid transit station in Los Angeles serving the Metro D Line at the intersection of Wilshire Boulevard and Western Avenue in Koreatown.
  • D. Santa Monica Downtown station
    Santa Monica Downtown station is a light rail transit stop in downtown Santa Monica that serves as the western terminus of Los Angeles Metro Rail’s E Line near the Pacific Ocean.
  • E. Wilshire/Normandie station
    Wilshire/Normandie station is an underground Los Angeles Metro Rail station on the D Line serving the Koreatown and Wilshire Center neighborhoods.
  • 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: Union Station–Wilshire/Vermont
Triple: [D Line (Los Angeles Metro), downtownTrunkSegment, Union Station–Wilshire/Vermont]
Generated description
Union Station–Wilshire/Vermont is the central shared trunk segment of Los Angeles Metro’s D Line, running between Union Station downtown and the Wilshire/Vermont station.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Union Station–Wilshire/Vermont
Target entity description: Union Station–Wilshire/Vermont is the central shared trunk segment of Los Angeles Metro’s D Line, running between Union Station downtown and the Wilshire/Vermont station.
  • A. Wilshire/Vermont station
    Wilshire/Vermont station is a major underground Los Angeles Metro Rail hub in Koreatown where multiple lines intersect, serving as a key transfer point for commuters.
  • B. Union Station (Los Angeles)
    Union Station (Los Angeles) is the city’s main intermodal transportation terminal, serving as a central hub for regional rail, subway, light rail, and bus services.
  • C. Wilshire/Western station
    Wilshire/Western station is an underground rapid transit station in Los Angeles serving the Metro D Line at the intersection of Wilshire Boulevard and Western Avenue in Koreatown.
  • D. Santa Monica Downtown station
    Santa Monica Downtown station is a light rail transit stop in downtown Santa Monica that serves as the western terminus of Los Angeles Metro Rail’s E Line near the Pacific Ocean.
  • E. Wilshire/Normandie station
    Wilshire/Normandie station is an underground Los Angeles Metro Rail station on the D Line serving the Koreatown and Wilshire Center neighborhoods.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: downtownTrunkSegment
Context triple: [D Line (Los Angeles Metro), downtownTrunkSegment, Union Station–Wilshire/Vermont]
  • A. isDowntownEndpointOf
    Indicates that a location serves as the downtown terminus or endpoint of a route, line, or path.
  • B. connectsDowntownTo
    Indicates a relationship where one location, route, or service provides a direct connection or access to a downtown area.
  • C. manhattanTrunkLine chosen
    Indicates a primary or central route, pathway, or connection running through a dense or core area, analogous to a main trunk line in Manhattan.
  • D. hasDowntown
    Indicates that a place or city possesses a central downtown area.
  • E. hasDowntownCharacteristic
    Indicates that something possesses a feature, quality, or attribute typically associated with a downtown area.
  • F. None of above.

Provenance (6 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_69ca832b56948190ba751cec255308f1 completed March 30, 2026, 2:05 p.m.
NER Named-entity recognition batch_69cc46d7c184819083236c75f9ccc9cf completed March 31, 2026, 10:12 p.m.
NED1 Entity disambiguation (via context triple) batch_69cecc839cdc819093c3cd0e44f173a2 completed April 2, 2026, 8:07 p.m.
NEDg Description generation batch_69cece14193081909e7b36f5b5b7da40 completed April 2, 2026, 8:14 p.m.
NED2 Entity disambiguation (via description) batch_69cecee1db28819095f704b96b8c6d2a completed April 2, 2026, 8:17 p.m.
PD Predicate disambiguation batch_69cc454eb2908190acf0e4336bc67e7b completed March 31, 2026, 10:06 p.m.
Created at: March 30, 2026, 6:24 p.m.