Triple

T1057795
Position Surface form Disambiguated ID Type / Status
Subject Porter (MBTA station) E22835 entity
Predicate hasAdjacentStation P231 FINISHED
Object Harvard (MBTA station)
Harvard (MBTA station) is a major underground Red Line subway and bus transfer hub located in Harvard Square in Cambridge, Massachusetts.
 E124672 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: Harvard (MBTA station) | Statement: [Porter (MBTA station), hasAdjacentStation, Harvard (MBTA station)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Harvard (MBTA station)
Context triple: [Porter (MBTA station), hasAdjacentStation, Harvard (MBTA station)]
  • A. Chestnut Hill station (MBTA Green Line D)
    Chestnut Hill station is a light rail stop on Boston’s MBTA Green Line D branch serving the Chestnut Hill neighborhood with access to nearby residential and commercial areas.
  • B. 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.
  • 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. Boylston station
    Boylston station is a historic underground light rail stop in downtown Boston that serves the MBTA Green Line.
  • E. 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.
  • 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: Harvard (MBTA station)
Triple: [Porter (MBTA station), hasAdjacentStation, Harvard (MBTA station)]
Generated description
Harvard (MBTA station) is a major underground Red Line subway and bus transfer hub located in Harvard Square in Cambridge, Massachusetts.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Harvard (MBTA station)
Target entity description: Harvard (MBTA station) is a major underground Red Line subway and bus transfer hub located in Harvard Square in Cambridge, Massachusetts.
  • A. Chestnut Hill station (MBTA Green Line D)
    Chestnut Hill station is a light rail stop on Boston’s MBTA Green Line D branch serving the Chestnut Hill neighborhood with access to nearby residential and commercial areas.
  • B. 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.
  • 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. Boylston station
    Boylston station is a historic underground light rail stop in downtown Boston that serves the MBTA Green Line.
  • E. 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.
  • 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_69a493dada0481909c43649f9843ea91 completed March 1, 2026, 7:30 p.m.
NER Named-entity recognition batch_69a4b8dc9e8c819099fbb192bcf80615 completed March 1, 2026, 10:08 p.m.
NED1 Entity disambiguation (via context triple) batch_69ac429f0580819082d5a2cc6129cb1e completed March 7, 2026, 3:22 p.m.
NEDg Description generation batch_69ac4356f8f88190ab5d3f76000d5352 completed March 7, 2026, 3:25 p.m.
NED2 Entity disambiguation (via description) batch_69ac43ded4308190bbedda3e2c6255a4 completed March 7, 2026, 3:27 p.m.
Created at: March 1, 2026, 7:42 p.m.