Triple

T4456378
Position Surface form Disambiguated ID Type / Status
Subject Warm Springs/South Fremont station E97734 entity
Predicate servesRegion P82 FINISHED
Object South Bay–East Bay commute corridor
The South Bay–East Bay commute corridor is a major regional travel route in the San Francisco Bay Area connecting residential and employment centers between the South Bay and East Bay.
E442224 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: South Bay–East Bay commute corridor | Statement: [Warm Springs/South Fremont station, servesRegion, South Bay–East Bay commute corridor]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: South Bay–East Bay commute corridor
Context triple: [Warm Springs/South Fremont station, servesRegion, South Bay–East Bay commute corridor]
  • A. South San Francisco–East Bay route
    The South San Francisco–East Bay route is a San Francisco Bay Ferry commuter and transit service connecting South San Francisco with cities on the East Bay shoreline across the San Francisco Bay.
  • B. Vallejo–San Francisco route
    The Vallejo–San Francisco route is a commuter and leisure passenger ferry service across San Pablo Bay linking the city of Vallejo with San Francisco.
  • C. Alameda/Oakland–San Francisco route
    The Alameda/Oakland–San Francisco route is a commuter and tourist ferry service across San Francisco Bay connecting the East Bay cities of Alameda and Oakland with San Francisco.
  • D. San Joaquin Valley transportation corridor
    The San Joaquin Valley transportation corridor is a major north–south route in California’s Central Valley that carries significant highway and rail traffic through key agricultural and population centers.
  • E. Norwalk–Redondo Beach corridor
    The Norwalk–Redondo Beach corridor is a major east–west transit corridor in Los Angeles County served by the Metro C Line, linking inland Norwalk with the coastal city of Redondo Beach.
  • 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: South Bay–East Bay commute corridor
Triple: [Warm Springs/South Fremont station, servesRegion, South Bay–East Bay commute corridor]
Generated description
The South Bay–East Bay commute corridor is a major regional travel route in the San Francisco Bay Area connecting residential and employment centers between the South Bay and East Bay.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: South Bay–East Bay commute corridor
Target entity description: The South Bay–East Bay commute corridor is a major regional travel route in the San Francisco Bay Area connecting residential and employment centers between the South Bay and East Bay.
  • A. South San Francisco–East Bay route
    The South San Francisco–East Bay route is a San Francisco Bay Ferry commuter and transit service connecting South San Francisco with cities on the East Bay shoreline across the San Francisco Bay.
  • B. Vallejo–San Francisco route
    The Vallejo–San Francisco route is a commuter and leisure passenger ferry service across San Pablo Bay linking the city of Vallejo with San Francisco.
  • C. Alameda/Oakland–San Francisco route
    The Alameda/Oakland–San Francisco route is a commuter and tourist ferry service across San Francisco Bay connecting the East Bay cities of Alameda and Oakland with San Francisco.
  • D. San Joaquin Valley transportation corridor
    The San Joaquin Valley transportation corridor is a major north–south route in California’s Central Valley that carries significant highway and rail traffic through key agricultural and population centers.
  • E. Norwalk–Redondo Beach corridor
    The Norwalk–Redondo Beach corridor is a major east–west transit corridor in Los Angeles County served by the Metro C Line, linking inland Norwalk with the coastal city of Redondo Beach.
  • 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_69b3454777808190b78aa9047ba1f018 completed March 12, 2026, 10:59 p.m.
NER Named-entity recognition batch_69b3564216b081908c41109100b36862 completed March 13, 2026, 12:11 a.m.
NED1 Entity disambiguation (via context triple) batch_69b6282743e08190a2c84f3b80c6d260 completed March 15, 2026, 3:31 a.m.
NEDg Description generation batch_69b62af29d3c81908cb82d142c2a55a4 completed March 15, 2026, 3:43 a.m.
NED2 Entity disambiguation (via description) batch_69b62ba4d6c88190b4eaacd09a0b2b66 completed March 15, 2026, 3:46 a.m.
Created at: March 12, 2026, 11:33 p.m.