Triple

T15748665
Position Surface form Disambiguated ID Type / Status
Subject MTS Bus E381788 entity
Predicate governingBody P46 FINISHED
Object San Diego Metropolitan Transit System Board of Directors
The San Diego Metropolitan Transit System Board of Directors is the governing body that sets policy, oversees operations, and makes strategic decisions for public transit services in the San Diego region.
E266739 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: San Diego Metropolitan Transit System Board of Directors | Statement: [MTS Bus, governingBody, San Diego Metropolitan Transit System Board of Directors]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: San Diego Metropolitan Transit System Board of Directors
Context triple: [MTS Bus, governingBody, San Diego Metropolitan Transit System Board of Directors]
  • A. San Diego Metropolitan Transit System
    The San Diego Metropolitan Transit System is the public transportation agency that operates buses and light rail services throughout the San Diego, California metropolitan area.
  • B. Board of Directors of the San Mateo County Transit District
    The Board of Directors of the San Mateo County Transit District is the policy-making and oversight body that directs and supervises the operations, budget, and strategic planning of SamTrans public transportation services in San Mateo County, California.
  • C. San Francisco Municipal Transportation Agency Board of Directors
    The San Francisco Municipal Transportation Agency Board of Directors is the governing body that sets policy and oversees the operation of the city’s public transportation and related mobility services.
  • D. San Diego City Council
    The San Diego City Council is the legislative body of the City of San Diego, responsible for creating local laws, approving budgets, and overseeing city policies and services.
  • E. San Diego Association of Governments
    The San Diego Association of Governments is a regional planning and transportation agency that coordinates land use, transit, and infrastructure policy for the greater San Diego metropolitan area.
  • 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: San Diego Metropolitan Transit System Board of Directors
Triple: [MTS Bus, governingBody, San Diego Metropolitan Transit System Board of Directors]
Generated description
The San Diego Metropolitan Transit System Board of Directors is the governing body that sets policy, oversees operations, and makes strategic decisions for public transit services in the San Diego region.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: San Diego Metropolitan Transit System Board of Directors
Target entity description: The San Diego Metropolitan Transit System Board of Directors is the governing body that sets policy, oversees operations, and makes strategic decisions for public transit services in the San Diego region.
  • A. San Diego Metropolitan Transit System chosen
    The San Diego Metropolitan Transit System is the public transportation agency that operates buses and light rail services throughout the San Diego, California metropolitan area.
  • B. Board of Directors of the San Mateo County Transit District
    The Board of Directors of the San Mateo County Transit District is the policy-making and oversight body that directs and supervises the operations, budget, and strategic planning of SamTrans public transportation services in San Mateo County, California.
  • C. San Francisco Municipal Transportation Agency Board of Directors
    The San Francisco Municipal Transportation Agency Board of Directors is the governing body that sets policy and oversees the operation of the city’s public transportation and related mobility services.
  • D. San Diego City Council
    The San Diego City Council is the legislative body of the City of San Diego, responsible for creating local laws, approving budgets, and overseeing city policies and services.
  • E. San Diego Association of Governments
    The San Diego Association of Governments is a regional planning and transportation agency that coordinates land use, transit, and infrastructure policy for the greater San Diego metropolitan area.
  • F. None of above.

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_69d86d9e6b44819085d1f6a969ecb74c completed April 10, 2026, 3:25 a.m.
NER Named-entity recognition batch_69e0502fd3608190b42e647b9c2b41a1 completed April 16, 2026, 2:57 a.m.
NED1 Entity disambiguation (via context triple) batch_69ff830b85408190b9ae4d6752524b99 completed May 9, 2026, 6:55 p.m.
NEDg Description generation batch_69ff8388b3588190ae55c123bb19cb2c completed May 9, 2026, 6:57 p.m.
NED2 Entity disambiguation (via description) batch_69ff84125e808190a4d465d9effad639 completed May 9, 2026, 6:59 p.m.
Created at: April 10, 2026, 4:46 a.m.