Triple

T1293132
Position Surface form Disambiguated ID Type / Status
Subject Minuteman Bikeway E27591 entity
Predicate easternTerminus P388 FINISHED
Object Alewife MBTA station
Alewife MBTA station is a major transit hub in Cambridge, Massachusetts, serving as the northern terminus of the Red Line and a key connection point for buses, park-and-ride commuters, and regional bike paths.
E155389 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: Alewife MBTA station | Statement: [Minuteman Bikeway, easternTerminus, Alewife MBTA station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Alewife MBTA station
Context triple: [Minuteman Bikeway, easternTerminus, Alewife MBTA station]
  • A. MBTA Silver Hill station
    MBTA Silver Hill station is a small commuter rail stop on the Massachusetts Bay Transportation Authority’s Fitchburg Line serving the Silver Hill neighborhood of Weston, Massachusetts.
  • B. Aquarium station (MBTA Blue Line)
    Aquarium station (MBTA Blue Line) is an underground Massachusetts Bay Transportation Authority subway station in downtown Boston serving the Blue Line near the city’s waterfront and tourist attractions.
  • C. Wellington Station (MBTA)
    Wellington Station (MBTA) is an Orange Line rapid transit station in Medford, Massachusetts, serving as a key park-and-ride and bus transfer hub just north of downtown Boston.
  • D. Revere Beach MBTA station
    Revere Beach MBTA station is a rapid transit stop on Boston’s Blue Line serving the Revere Beach area in Revere, Massachusetts.
  • E. State Street MBTA station
    State Street MBTA station is a major downtown Boston subway stop on the Orange and Blue Lines, located near the Old State House and serving the city’s historic and financial districts.
  • 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: Alewife MBTA station
Triple: [Minuteman Bikeway, easternTerminus, Alewife MBTA station]
Generated description
Alewife MBTA station is a major transit hub in Cambridge, Massachusetts, serving as the northern terminus of the Red Line and a key connection point for buses, park-and-ride commuters, and regional bike paths.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Alewife MBTA station
Target entity description: Alewife MBTA station is a major transit hub in Cambridge, Massachusetts, serving as the northern terminus of the Red Line and a key connection point for buses, park-and-ride commuters, and regional bike paths.
  • A. MBTA Silver Hill station
    MBTA Silver Hill station is a small commuter rail stop on the Massachusetts Bay Transportation Authority’s Fitchburg Line serving the Silver Hill neighborhood of Weston, Massachusetts.
  • B. Aquarium station (MBTA Blue Line)
    Aquarium station (MBTA Blue Line) is an underground Massachusetts Bay Transportation Authority subway station in downtown Boston serving the Blue Line near the city’s waterfront and tourist attractions.
  • C. Wellington Station (MBTA)
    Wellington Station (MBTA) is an Orange Line rapid transit station in Medford, Massachusetts, serving as a key park-and-ride and bus transfer hub just north of downtown Boston.
  • D. Revere Beach MBTA station
    Revere Beach MBTA station is a rapid transit stop on Boston’s Blue Line serving the Revere Beach area in Revere, Massachusetts.
  • E. State Street MBTA station
    State Street MBTA station is a major downtown Boston subway stop on the Orange and Blue Lines, located near the Old State House and serving the city’s historic and financial districts.
  • 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_69a496d4ec448190ad653b2590c46711 completed March 1, 2026, 7:43 p.m.
NER Named-entity recognition batch_69a4c0f09d5c81909e6dc036fe9c5b4a completed March 1, 2026, 10:42 p.m.
NED1 Entity disambiguation (via context triple) batch_69acce5fa07c8190a410461d51ef1f3a completed March 8, 2026, 1:18 a.m.
NEDg Description generation batch_69accf21a79c819086219d2927c61349 completed March 8, 2026, 1:21 a.m.
NED2 Entity disambiguation (via description) batch_69accf84fbb88190a1b7a7546f485e61 completed March 8, 2026, 1:23 a.m.
Created at: March 1, 2026, 7:51 p.m.