Triple

T8274380
Position Surface form Disambiguated ID Type / Status
Subject Lower Mills E193505 entity
Predicate hasLandmark P105 FINISHED
Object Lower Mills MBTA station
Lower Mills MBTA station is a Massachusetts Bay Transportation Authority transit stop serving the Lower Mills neighborhood of Boston, Massachusetts.
 E723015 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: Lower Mills MBTA station | Statement: [Lower Mills, hasLandmark, Lower Mills MBTA station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Lower Mills MBTA station
Context triple: [Lower Mills, hasLandmark, Lower Mills 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. Forest Hills MBTA station
    Forest Hills MBTA station is a major multimodal transit hub in Boston’s Jamaica Plain neighborhood, serving as a key terminus for subway, commuter rail, and bus routes.
  • C. Waban MBTA station
    Waban MBTA station is a light rail stop on the MBTA Green Line D branch in Newton, Massachusetts, serving the village of Waban.
  • D. Malden Center station
    Malden Center station is a major transit hub in Malden, Massachusetts, serving both MBTA Orange Line subway and commuter rail services.
  • E. 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.
  • 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: Lower Mills MBTA station
Triple: [Lower Mills, hasLandmark, Lower Mills MBTA station]
Generated description
Lower Mills MBTA station is a Massachusetts Bay Transportation Authority transit stop serving the Lower Mills neighborhood of Boston, Massachusetts.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Lower Mills MBTA station
Target entity description: Lower Mills MBTA station is a Massachusetts Bay Transportation Authority transit stop serving the Lower Mills neighborhood of Boston, Massachusetts.
  • 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. Forest Hills MBTA station
    Forest Hills MBTA station is a major multimodal transit hub in Boston’s Jamaica Plain neighborhood, serving as a key terminus for subway, commuter rail, and bus routes.
  • C. Waban MBTA station
    Waban MBTA station is a light rail stop on the MBTA Green Line D branch in Newton, Massachusetts, serving the village of Waban.
  • D. Malden Center station
    Malden Center station is a major transit hub in Malden, Massachusetts, serving both MBTA Orange Line subway and commuter rail services.
  • E. 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.
  • 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_69ca82e14ae481908ffdb822cd2192bc completed March 30, 2026, 2:04 p.m.
NER Named-entity recognition batch_69cb798bc29c8190927ef4b0662d6b98 completed March 31, 2026, 7:36 a.m.
NED1 Entity disambiguation (via context triple) batch_69cd68502888819084bfe4621978711d completed April 1, 2026, 6:47 p.m.
NEDg Description generation batch_69cd6c21172481908dc04b85ee4370a8 completed April 1, 2026, 7:04 p.m.
NED2 Entity disambiguation (via description) batch_69cd7e0d1b8c8190b5183cc176432061 completed April 1, 2026, 8:20 p.m.
Created at: March 30, 2026, 5:51 p.m.