Triple

T4047946
Position Surface form Disambiguated ID Type / Status
Subject Transbay Tube E84112 entity
Predicate isKeyLinkIn P32978 FINISHED
Object Transbay corridor
The Transbay corridor is a major transportation route connecting San Francisco with cities across the San Francisco Bay, carrying heavy commuter and regional transit traffic.
E84112 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: Transbay corridor | Statement: [Transbay Tube, isKeyLinkIn, Transbay corridor]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Transbay corridor
Context triple: [Transbay Tube, isKeyLinkIn, Transbay corridor]
  • A. Alameda Corridor
    The Alameda Corridor is a 20-mile freight rail expressway in Los Angeles County that consolidates and streamlines cargo movement between the region’s ports and the national rail network.
  • B. Transbay Tube
    The Transbay Tube is an underwater rail tunnel beneath San Francisco Bay that carries BART trains between San Francisco and Oakland.
  • C. Eastside Extension corridor
    The Eastside Extension corridor is a light rail transit corridor in East Los Angeles that carries Metro Rail service between downtown Los Angeles and several predominantly Latino eastside communities.
  • D. Golden Gate Bridge corridor
    The Golden Gate Bridge corridor is the major transportation route spanning the Golden Gate Strait in the San Francisco Bay Area, encompassing the iconic Golden Gate Bridge and its approaches for vehicular, bicycle, and pedestrian traffic.
  • E. Southwest Corridor
    The Southwest Corridor is a major transportation and greenway corridor in Boston that combines rail lines, parks, and bike paths connecting downtown with southwestern 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: Transbay corridor
Triple: [Transbay Tube, isKeyLinkIn, Transbay corridor]
Generated description
The Transbay corridor is a major transportation route connecting San Francisco with cities across the San Francisco Bay, carrying heavy commuter and regional transit traffic.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Transbay corridor
Target entity description: The Transbay corridor is a major transportation route connecting San Francisco with cities across the San Francisco Bay, carrying heavy commuter and regional transit traffic.
  • A. Alameda Corridor
    The Alameda Corridor is a 20-mile freight rail expressway in Los Angeles County that consolidates and streamlines cargo movement between the region’s ports and the national rail network.
  • B. Transbay Tube chosen
    The Transbay Tube is an underwater rail tunnel beneath San Francisco Bay that carries BART trains between San Francisco and Oakland.
  • C. Eastside Extension corridor
    The Eastside Extension corridor is a light rail transit corridor in East Los Angeles that carries Metro Rail service between downtown Los Angeles and several predominantly Latino eastside communities.
  • D. Golden Gate Bridge corridor
    The Golden Gate Bridge corridor is the major transportation route spanning the Golden Gate Strait in the San Francisco Bay Area, encompassing the iconic Golden Gate Bridge and its approaches for vehicular, bicycle, and pedestrian traffic.
  • E. Southwest Corridor
    The Southwest Corridor is a major transportation and greenway corridor in Boston that combines rail lines, parks, and bike paths connecting downtown with southwestern neighborhoods.
  • 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_69aed930bd5c819083e7dcc14fc44f69 completed March 9, 2026, 2:29 p.m.
NER Named-entity recognition batch_69aefb81040481909b22e4c445ecae0f completed March 9, 2026, 4:55 p.m.
NED1 Entity disambiguation (via context triple) batch_69b5565466648190802a9b8fd88c3572 completed March 14, 2026, 12:36 p.m.
NEDg Description generation batch_69b556cdd05081909fea1fb0a58bc7d1 completed March 14, 2026, 12:38 p.m.
NED2 Entity disambiguation (via description) batch_69b557d445d081908f48fe3bd06f786e completed March 14, 2026, 12:43 p.m.
Created at: March 9, 2026, 3:37 p.m.