Triple

T4226880
Position Surface form Disambiguated ID Type / Status
Subject Foothill Transit E94479 entity
Predicate hasDepot P2413 FINISHED
Object Arcadia Operations and Maintenance Facility
Arcadia Operations and Maintenance Facility is a major bus operations and maintenance center serving Foothill Transit’s public transportation network in the San Gabriel Valley region of Los Angeles County.
E422623 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: Arcadia Operations and Maintenance Facility | Statement: [Foothill Transit, hasDepot, Arcadia Operations and Maintenance Facility]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Arcadia Operations and Maintenance Facility
Context triple: [Foothill Transit, hasDepot, Arcadia Operations and Maintenance Facility]
  • A. Hedley Industrial Complex
    The Hedley Industrial Complex is a historic former manufacturing site in Troy, New York, that has been redeveloped into a mixed-use commercial and office complex along the Hudson River.
  • B. Faraday Station
    Faraday Station was a British Antarctic research base, later transferred to Ukraine and renamed Vernadsky Research Base, known for its long-term scientific observations in the Antarctic Peninsula region.
  • C. Aberdeen Chemical Agent Disposal Facility
    The Aberdeen Chemical Agent Disposal Facility was a U.S. Army installation in Maryland dedicated to safely destroying stockpiled chemical weapons as part of the nation’s chemical demilitarization efforts.
  • D. Gianelli Pumping–Generating Plant
    The Gianelli Pumping–Generating Plant is a major hydroelectric and pumping facility in California that moves water for irrigation and storage while generating electricity as part of the state’s Central Valley Project.
  • E. Tracy Pumping Plant
    Tracy Pumping Plant is a major water pumping facility in California that lifts and conveys water from the Sacramento–San Joaquin Delta into the Central Valley Project’s distribution system.
  • 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: Arcadia Operations and Maintenance Facility
Triple: [Foothill Transit, hasDepot, Arcadia Operations and Maintenance Facility]
Generated description
Arcadia Operations and Maintenance Facility is a major bus operations and maintenance center serving Foothill Transit’s public transportation network in the San Gabriel Valley region of Los Angeles County.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Arcadia Operations and Maintenance Facility
Target entity description: Arcadia Operations and Maintenance Facility is a major bus operations and maintenance center serving Foothill Transit’s public transportation network in the San Gabriel Valley region of Los Angeles County.
  • A. Hedley Industrial Complex
    The Hedley Industrial Complex is a historic former manufacturing site in Troy, New York, that has been redeveloped into a mixed-use commercial and office complex along the Hudson River.
  • B. Faraday Station
    Faraday Station was a British Antarctic research base, later transferred to Ukraine and renamed Vernadsky Research Base, known for its long-term scientific observations in the Antarctic Peninsula region.
  • C. Aberdeen Chemical Agent Disposal Facility
    The Aberdeen Chemical Agent Disposal Facility was a U.S. Army installation in Maryland dedicated to safely destroying stockpiled chemical weapons as part of the nation’s chemical demilitarization efforts.
  • D. Gianelli Pumping–Generating Plant
    The Gianelli Pumping–Generating Plant is a major hydroelectric and pumping facility in California that moves water for irrigation and storage while generating electricity as part of the state’s Central Valley Project.
  • E. Tracy Pumping Plant
    Tracy Pumping Plant is a major water pumping facility in California that lifts and conveys water from the Sacramento–San Joaquin Delta into the Central Valley Project’s distribution system.
  • 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_69b3453700a08190ae88792e3dc63207 completed March 12, 2026, 10:59 p.m.
NER Named-entity recognition batch_69b34e5003008190834726e46df3ee9b completed March 12, 2026, 11:37 p.m.
NED1 Entity disambiguation (via context triple) batch_69b5964a388881908038e5a612424b9b completed March 14, 2026, 5:09 p.m.
NEDg Description generation batch_69b596cb73ac81909f83daca406ad8c4 completed March 14, 2026, 5:11 p.m.
NED2 Entity disambiguation (via description) batch_69b59a9c386081909c21ad554d403bfc completed March 14, 2026, 5:27 p.m.
Created at: March 12, 2026, 11:04 p.m.