Triple

T3470
Position Surface form Disambiguated ID Type / Status
Subject MBTA Fitchburg Line E65 entity
Predicate endPoint P390 FINISHED
Object Fitchburg E38842 NE FINISHED

How this triple was built (3 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: Fitchburg | Statement: [MBTA Fitchburg Line, endPoint, Fitchburg]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Fitchburg
Context triple: [MBTA Fitchburg Line, endPoint, Fitchburg]
  • A. Fitchburg chosen
    Fitchburg is a small city in north-central Massachusetts known for its industrial history, hilly terrain, and role as a regional rail hub.
  • B. Framingham
    Framingham is a suburban city in eastern Massachusetts known for its residential communities, retail centers, and location along major routes west of Boston.
  • C. Brockton, Massachusetts
    Brockton, Massachusetts is a mid-sized city in Plymouth County known historically as a major shoe manufacturing center and sometimes called the "City of Champions" for its successful boxers and sports legacy.
  • D. Springfield, Massachusetts
    Springfield, Massachusetts is a historic city in western Massachusetts known as the birthplace of basketball and a former industrial and transportation hub along the Connecticut River.
  • E. Holyoke, Massachusetts
    Holyoke, Massachusetts is a historic industrial city in western Massachusetts known for its early planned mill town design and significant role in the paper manufacturing industry.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
PD Predicate disambiguation gpt-5-mini-2025-08-07 
Target predicate: endPoint
Context triple: [MBTA Fitchburg Line, endPoint, Fitchburg]
  • A. endDate
    Indicates the point in time at which an event, state, or relationship stops being valid or comes to a conclusion.
  • B. near
    Indicates that one entity is located at a short distance from another entity in space or position.
  • C. focusesOn
    Indicates that one entity directs its attention, effort, or primary activity toward another entity or specific subject.
  • D. addresses
    Indicates that one entity directs speech, communication, or written correspondence specifically toward another entity.
  • E. operatesBy
    Indicates that an entity performs its function, action, or process through the use or application of another entity (e.g., a method, mechanism, or principle).
  • 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_69a238d6b47881909e68288aed2fd858 completed Feb. 28, 2026, 12:37 a.m.
NER Named-entity recognition batch_69a23bcc8eb48190b897cc331563980a completed Feb. 28, 2026, 12:50 a.m.
NED1 Entity disambiguation (via context triple) batch_69a3b06cd4b4819086bcc9c1c06e84ff completed March 1, 2026, 3:20 a.m.
PD Predicate disambiguation batch_69a23994309081909ff3e869deef2156 completed Feb. 28, 2026, 12:40 a.m.
PDg Predicate description generation batch_69a23bcb4bbc819093775f623998d62d completed Feb. 28, 2026, 12:50 a.m.
Created at: Feb. 28, 2026, 12:40 a.m.