Triple

T350265
Position Surface form Disambiguated ID Type / Status
Subject Atherton station E7425 entity
Predicate railwayLine P848 FINISHED
Object Peninsula Subdivision
Peninsula Subdivision is a rail line in California’s San Francisco Peninsula region that carries commuter and other train services through cities such as Atherton.
E44887 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: Peninsula Subdivision | Statement: [Atherton station, railwayLine, Peninsula Subdivision]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Peninsula Subdivision
Context triple: [Atherton station, railwayLine, Peninsula Subdivision]
  • A. Red Mountain Park
    Red Mountain Park is a large urban green space in Birmingham, Alabama, featuring wooded trails, historic mining sites, and outdoor recreation areas.
  • B. Shoreline Village
    Shoreline Village is a waterfront shopping, dining, and entertainment complex in Long Beach, California, known for its marina views and boardwalk atmosphere.
  • C. Pine Hill
    Pine Hill is the modestly elevated summit that serves as the highest natural point on Cape Cod in Massachusetts.
  • D. Sullivan’s Gulch neighborhood
    Sullivan’s Gulch neighborhood is a primarily residential area in inner Northeast Portland, Oregon, known for its tree-lined streets, mid-century homes, and proximity to major transit and commercial districts.
  • E. Bethesda Terrace
    Bethesda Terrace is a grand, 19th-century architectural centerpiece of New York City's Central Park, renowned for its ornate stonework, sweeping staircases, and iconic views over the Bethesda Fountain and Lake.
  • 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: Peninsula Subdivision
Triple: [Atherton station, railwayLine, Peninsula Subdivision]
Generated description
Peninsula Subdivision is a rail line in California’s San Francisco Peninsula region that carries commuter and other train services through cities such as Atherton.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Peninsula Subdivision
Target entity description: Peninsula Subdivision is a rail line in California’s San Francisco Peninsula region that carries commuter and other train services through cities such as Atherton.
  • A. Red Mountain Park
    Red Mountain Park is a large urban green space in Birmingham, Alabama, featuring wooded trails, historic mining sites, and outdoor recreation areas.
  • B. Shoreline Village
    Shoreline Village is a waterfront shopping, dining, and entertainment complex in Long Beach, California, known for its marina views and boardwalk atmosphere.
  • C. Pine Hill
    Pine Hill is the modestly elevated summit that serves as the highest natural point on Cape Cod in Massachusetts.
  • D. Sullivan’s Gulch neighborhood
    Sullivan’s Gulch neighborhood is a primarily residential area in inner Northeast Portland, Oregon, known for its tree-lined streets, mid-century homes, and proximity to major transit and commercial districts.
  • E. Bethesda Terrace
    Bethesda Terrace is a grand, 19th-century architectural centerpiece of New York City's Central Park, renowned for its ornate stonework, sweeping staircases, and iconic views over the Bethesda Fountain and Lake.
  • 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_69a2e7e696948190bebc966535995e45 completed Feb. 28, 2026, 1:04 p.m.
NER Named-entity recognition batch_69a2eb1f028c819098fa6480b4ca5cf0 completed Feb. 28, 2026, 1:18 p.m.
NED1 Entity disambiguation (via context triple) batch_69a3dd33a50c8190846d19c24eb74039 completed March 1, 2026, 6:31 a.m.
NEDg Description generation batch_69a3ddca8d3c8190b5baafe999a26b58 completed March 1, 2026, 6:33 a.m.
NED2 Entity disambiguation (via description) batch_69a3de7f9b28819099cfe7c55a8168f0 completed March 1, 2026, 6:36 a.m.
Created at: Feb. 28, 2026, 1:08 p.m.