Triple

T6050652
Position Surface form Disambiguated ID Type / Status
Subject C Branch E134782 entity
Predicate hasStop P17789 FINISHED
Object Coolidge Corner station
Coolidge Corner station is a light rail stop on the MBTA Green Line in Brookline, Massachusetts, serving the busy commercial and residential Coolidge Corner neighborhood.
 E578520 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: Coolidge Corner station | Statement: [C Branch, hasStop, Coolidge Corner station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Coolidge Corner station
Context triple: [C Branch, hasStop, Coolidge Corner station]
  • A. Massachusetts Avenue station
    Massachusetts Avenue station is an underground rapid transit stop in Boston, Massachusetts, located in the South End and served by the MBTA's Orange 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. Boylston station
    Boylston station is a historic underground light rail stop in downtown Boston that serves the MBTA Green Line.
  • D. Savin Hill station
    Savin Hill station is a rapid transit stop on the Massachusetts Bay Transportation Authority's Red Line serving the Savin Hill neighborhood of Dorchester in Boston, Massachusetts.
  • E. 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.
  • 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: Coolidge Corner station
Triple: [C Branch, hasStop, Coolidge Corner station]
Generated description
Coolidge Corner station is a light rail stop on the MBTA Green Line in Brookline, Massachusetts, serving the busy commercial and residential Coolidge Corner neighborhood.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Coolidge Corner station
Target entity description: Coolidge Corner station is a light rail stop on the MBTA Green Line in Brookline, Massachusetts, serving the busy commercial and residential Coolidge Corner neighborhood.
  • A. Massachusetts Avenue station
    Massachusetts Avenue station is an underground rapid transit stop in Boston, Massachusetts, located in the South End and served by the MBTA's Orange 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. Boylston station
    Boylston station is a historic underground light rail stop in downtown Boston that serves the MBTA Green Line.
  • D. Savin Hill station
    Savin Hill station is a rapid transit stop on the Massachusetts Bay Transportation Authority's Red Line serving the Savin Hill neighborhood of Dorchester in Boston, Massachusetts.
  • E. 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.
  • 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_69c00877b6d4819096b0e163728b73a3 completed March 22, 2026, 3:19 p.m.
NER Named-entity recognition batch_69c056f66cb08190a782cdd038f26b93 completed March 22, 2026, 8:54 p.m.
NED1 Entity disambiguation (via context triple) batch_69c20d4499dc8190943486cf1af83f0a completed March 24, 2026, 4:04 a.m.
NEDg Description generation batch_69c2139588288190b25f5c5b148f0e9e completed March 24, 2026, 4:31 a.m.
NED2 Entity disambiguation (via description) batch_69c214ee18608190ab937b868f979a66 completed March 24, 2026, 4:37 a.m.
Created at: March 22, 2026, 4:09 p.m.