Triple

T7297048
Position Surface form Disambiguated ID Type / Status
Subject Needham Line E164549 entity
Predicate hasStation P35 FINISHED
Object Needham Center
Needham Center is a commuter rail station in Needham, Massachusetts, serving as one of the stops on the MBTA's Needham Line.
 E655299 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: Needham Center | Statement: [Needham Line, hasStation, Needham Center]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Needham Center
Context triple: [Needham Line, hasStation, Needham Center]
  • A. Harvard Annex
    Harvard Annex was a 19th-century institution affiliated with Harvard University that provided higher education to women before their formal admission to the university.
  • B. Needham High School
    Needham High School is a public secondary school serving students in grades 9–12 in the town of Needham, Massachusetts.
  • C. Natick Common
    Natick Common is the central town green and public gathering space in downtown Natick, Massachusetts, known for community events, concerts, and seasonal celebrations.
  • D. Lewis Center
    Lewis Center is a campus building located on the Loop Campus, likely serving academic and administrative functions for the institution.
  • E. Needham Public Schools
    Needham Public Schools is the public school district serving the town of Needham, Massachusetts, providing K–12 education through its network of elementary, middle, and high schools.
  • 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: Needham Center
Triple: [Needham Line, hasStation, Needham Center]
Generated description
Needham Center is a commuter rail station in Needham, Massachusetts, serving as one of the stops on the MBTA's Needham Line.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Needham Center
Target entity description: Needham Center is a commuter rail station in Needham, Massachusetts, serving as one of the stops on the MBTA's Needham Line.
  • A. Harvard Annex
    Harvard Annex was a 19th-century institution affiliated with Harvard University that provided higher education to women before their formal admission to the university.
  • B. Needham High School
    Needham High School is a public secondary school serving students in grades 9–12 in the town of Needham, Massachusetts.
  • C. Natick Common
    Natick Common is the central town green and public gathering space in downtown Natick, Massachusetts, known for community events, concerts, and seasonal celebrations.
  • D. Lewis Center
    Lewis Center is a campus building located on the Loop Campus, likely serving academic and administrative functions for the institution.
  • E. Needham Public Schools
    Needham Public Schools is the public school district serving the town of Needham, Massachusetts, providing K–12 education through its network of elementary, middle, and high schools.
  • 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_69c6887a499881909dd23341399c59d8 completed March 27, 2026, 1:39 p.m.
NER Named-entity recognition batch_69c6eb8e48d48190ada4d507f3b61bc4 completed March 27, 2026, 8:41 p.m.
NED1 Entity disambiguation (via context triple) batch_69c7e54c25c88190891311b72f242e86 completed March 28, 2026, 2:27 p.m.
NEDg Description generation batch_69c7e5ef420081908026576aaba34b11 completed March 28, 2026, 2:30 p.m.
NED2 Entity disambiguation (via description) batch_69c7e67d64748190a4b5765a06413fd6 completed March 28, 2026, 2:32 p.m.
Created at: March 27, 2026, 3 p.m.