Triple

T7126157
Position Surface form Disambiguated ID Type / Status
Subject MBTA Green Line B branch E166066 entity
Predicate hasStop P17789 FINISHED
Object Chestnut Hill Avenue station
Chestnut Hill Avenue station is a light rail stop on Boston’s MBTA Green Line serving the Brighton neighborhood near Cleveland Circle.
 E652013 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 Avenue station | Statement: [MBTA Green Line B branch, hasStop, Chestnut Hill Avenue station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Chestnut Hill Avenue station
Context triple: [MBTA Green Line B branch, hasStop, Chestnut Hill Avenue 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. 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.
  • C. Chestnut Hill station
    Chestnut Hill station is a Massachusetts Bay Transportation Authority light rail stop on the Green Line serving the Chestnut Hill neighborhood of Newton, Massachusetts.
  • D. Allston Street station
    Allston Street station is a light rail stop on Boston's MBTA Green Line serving the Allston neighborhood along Commonwealth Avenue.
  • E. Franklin Avenue Station
    Franklin Avenue Station is a light rail stop on the METRO Blue Line in Minneapolis, Minnesota, serving the surrounding residential and commercial 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 Avenue station
Triple: [MBTA Green Line B branch, hasStop, Chestnut Hill Avenue station]
Generated description
Chestnut Hill Avenue station is a light rail stop on Boston’s MBTA Green Line serving the Brighton neighborhood near Cleveland Circle.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Chestnut Hill Avenue station
Target entity description: Chestnut Hill Avenue station is a light rail stop on Boston’s MBTA Green Line serving the Brighton neighborhood near Cleveland Circle.
  • 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. 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.
  • C. Chestnut Hill station
    Chestnut Hill station is a Massachusetts Bay Transportation Authority light rail stop on the Green Line serving the Chestnut Hill neighborhood of Newton, Massachusetts.
  • D. Allston Street station
    Allston Street station is a light rail stop on Boston's MBTA Green Line serving the Allston neighborhood along Commonwealth Avenue.
  • E. Franklin Avenue Station
    Franklin Avenue Station is a light rail stop on the METRO Blue Line in Minneapolis, Minnesota, serving the surrounding residential and commercial 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_69c6888350588190870cd552b427a1cd completed March 27, 2026, 1:39 p.m.
NER Named-entity recognition batch_69c6e64d99888190a93c1822e19b5457 completed March 27, 2026, 8:19 p.m.
NED1 Entity disambiguation (via context triple) batch_69c7d3759a2c81908535af2a749375ca completed March 28, 2026, 1:11 p.m.
NEDg Description generation batch_69c7d44e67848190ac52eca99ef18f28 completed March 28, 2026, 1:14 p.m.
NED2 Entity disambiguation (via description) batch_69c7d4fc837c81909827352be19f64b4 completed March 28, 2026, 1:17 p.m.
Created at: March 27, 2026, 2:44 p.m.