Triple

T1354828
Position Surface form Disambiguated ID Type / Status
Subject Chestnut Hill West Line E28964 entity
Predicate terminus P388 FINISHED
Object Chestnut Hill West station
Chestnut Hill West station is a SEPTA Regional Rail station in the Chestnut Hill neighborhood of Philadelphia serving as the northern endpoint of the Chestnut Hill West Line.
E218002 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: Chestnut Hill West station | Statement: [Chestnut Hill West Line, terminus, Chestnut Hill West station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Chestnut Hill West station
Context triple: [Chestnut Hill West Line, terminus, Chestnut Hill West station]
  • A. Chestnut Hill East station
    Chestnut Hill East station is a SEPTA Regional Rail station in Philadelphia serving as the northern endpoint of the Chestnut Hill East Line.
  • B. Ashmont station
    Ashmont station is a major MBTA transit hub in Boston’s Dorchester neighborhood, serving as the southern terminus of the Red Line’s Ashmont branch and the connection point to the Mattapan trolley line.
  • C. Brookline Village station
    Brookline Village station is a light rail stop on the Massachusetts Bay Transportation Authority’s Green Line in the Brookline neighborhood just outside Boston.
  • D. Copley station
    Copley station is a major underground MBTA subway stop in Boston’s Back Bay neighborhood, serving multiple branches of the Green Line and providing access to nearby landmarks like Copley Square and the Boston Public Library.
  • E. Brookline Hills station
    Brookline Hills station is a light rail stop on the Massachusetts Bay Transportation Authority’s Green Line in Brookline, Massachusetts, serving local commuters and nearby schools and 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: Chestnut Hill West station
Triple: [Chestnut Hill West Line, terminus, Chestnut Hill West station]
Generated description
Chestnut Hill West station is a SEPTA Regional Rail station in the Chestnut Hill neighborhood of Philadelphia serving as the northern endpoint of the Chestnut Hill West Line.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Chestnut Hill West station
Target entity description: Chestnut Hill West station is a SEPTA Regional Rail station in the Chestnut Hill neighborhood of Philadelphia serving as the northern endpoint of the Chestnut Hill West Line.
  • A. Chestnut Hill East station
    Chestnut Hill East station is a SEPTA Regional Rail station in Philadelphia serving as the northern endpoint of the Chestnut Hill East Line.
  • B. Ashmont station
    Ashmont station is a major MBTA transit hub in Boston’s Dorchester neighborhood, serving as the southern terminus of the Red Line’s Ashmont branch and the connection point to the Mattapan trolley line.
  • C. Brookline Village station
    Brookline Village station is a light rail stop on the Massachusetts Bay Transportation Authority’s Green Line in the Brookline neighborhood just outside Boston.
  • D. Copley station
    Copley station is a major underground MBTA subway stop in Boston’s Back Bay neighborhood, serving multiple branches of the Green Line and providing access to nearby landmarks like Copley Square and the Boston Public Library.
  • E. Brookline Hills station
    Brookline Hills station is a light rail stop on the Massachusetts Bay Transportation Authority’s Green Line in Brookline, Massachusetts, serving local commuters and nearby schools and neighborhoods.
  • 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_69a498571d248190a0ac9eb02d97097f completed March 1, 2026, 7:49 p.m.
NER Named-entity recognition batch_69a4c28afc848190925d8b2f9aeac12d completed March 1, 2026, 10:49 p.m.
NED1 Entity disambiguation (via context triple) batch_69adfb8a58ec81908b2bb5c27283bafa completed March 8, 2026, 10:43 p.m.
NEDg Description generation batch_69adfc6aa96c81909ae3cff6c7ab7f79 completed March 8, 2026, 10:47 p.m.
NED2 Entity disambiguation (via description) batch_69adfcebbc808190a74f9082636bce11 completed March 8, 2026, 10:49 p.m.
Created at: March 1, 2026, 7:56 p.m.