Triple

T7297015
Position Surface form Disambiguated ID Type / Status
Subject Needham Line E164549 entity
Predicate terminus P388 FINISHED
Object Needham Heights station
Needham Heights station is a Massachusetts Bay Transportation Authority commuter rail stop in Needham, Massachusetts, serving as the endpoint of service from Boston on the Needham Line.
 E655298 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: Needham Heights station | Statement: [Needham Line, terminus, Needham Heights station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Needham Heights station
Context triple: [Needham Line, terminus, Needham Heights station]
  • A. Wellesley Hills station
    Wellesley Hills station is a commuter rail stop on the MBTA Framingham/Worcester Line serving the Wellesley Hills neighborhood in Wellesley, Massachusetts.
  • B. Beverly Farms station
    Beverly Farms station is a commuter rail stop in the Beverly Farms neighborhood of Beverly, Massachusetts, served by the MBTA's Newburyport/Rockport 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. 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.
  • 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: Needham Heights station
Triple: [Needham Line, terminus, Needham Heights station]
Generated description
Needham Heights station is a Massachusetts Bay Transportation Authority commuter rail stop in Needham, Massachusetts, serving as the endpoint of service from Boston on the Needham Line.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Needham Heights station
Target entity description: Needham Heights station is a Massachusetts Bay Transportation Authority commuter rail stop in Needham, Massachusetts, serving as the endpoint of service from Boston on the Needham Line.
  • A. Wellesley Hills station
    Wellesley Hills station is a commuter rail stop on the MBTA Framingham/Worcester Line serving the Wellesley Hills neighborhood in Wellesley, Massachusetts.
  • B. Beverly Farms station
    Beverly Farms station is a commuter rail stop in the Beverly Farms neighborhood of Beverly, Massachusetts, served by the MBTA's Newburyport/Rockport 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. 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.
  • 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_69c6887a499881909dd23341399c59d8 completed March 27, 2026, 1:39 p.m.
NER Named-entity recognition batch_69c6eb8e48d48190ada4d507f3b61bc4 completed March 27, 2026, 8:41 p.m.
NED1 Entity disambiguation (via context triple) batch_69c7e54c25c88190891311b72f242e86 completed March 28, 2026, 2:27 p.m.
NEDg Description generation batch_69c7e5ef420081908026576aaba34b11 completed March 28, 2026, 2:30 p.m.
NED2 Entity disambiguation (via description) batch_69c7e67d64748190a4b5765a06413fd6 completed March 28, 2026, 2:32 p.m.
Created at: March 27, 2026, 3 p.m.