Triple

T1190020
Position Surface form Disambiguated ID Type / Status
Subject MBTA Blue Line E25336 entity
Predicate terminus P388 FINISHED
Object Bowdoin station
Bowdoin station is an underground Massachusetts Bay Transportation Authority subway station in downtown Boston serving the Blue Line near Government Center.
 E162402 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: Bowdoin station | Statement: [MBTA Blue Line, terminus, Bowdoin station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Bowdoin station
Context triple: [MBTA Blue Line, terminus, Bowdoin station]
  • A. Vermont/Beverly station
    Vermont/Beverly station is an underground rapid transit stop on Los Angeles Metro's B Line serving the Koreatown area.
  • B. Porter station
    Porter station is a major MBTA transit hub in Cambridge, Massachusetts, serving both Red Line subway and commuter rail trains beneath Porter Square.
  • C. Brunswick station
    Brunswick station is a passenger rail station in Brunswick, Maryland, serving as the western endpoint of MARC's Brunswick Line commuter service.
  • D. Washington/Wells station
    Washington/Wells station is an elevated Chicago 'L' train station in the Loop that serves multiple CTA lines, including the Orange Line.
  • E. Malden Center station
    Malden Center station is a major transit hub in Malden, Massachusetts, serving both MBTA Orange Line subway and commuter rail services.
  • 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: Bowdoin station
Triple: [MBTA Blue Line, terminus, Bowdoin station]
Generated description
Bowdoin station is an underground Massachusetts Bay Transportation Authority subway station in downtown Boston serving the Blue Line near Government Center.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Bowdoin station
Target entity description: Bowdoin station is an underground Massachusetts Bay Transportation Authority subway station in downtown Boston serving the Blue Line near Government Center.
  • A. Vermont/Beverly station
    Vermont/Beverly station is an underground rapid transit stop on Los Angeles Metro's B Line serving the Koreatown area.
  • B. Porter station
    Porter station is a major MBTA transit hub in Cambridge, Massachusetts, serving both Red Line subway and commuter rail trains beneath Porter Square.
  • C. Brunswick station
    Brunswick station is a passenger rail station in Brunswick, Maryland, serving as the western endpoint of MARC's Brunswick Line commuter service.
  • D. Washington/Wells station
    Washington/Wells station is an elevated Chicago 'L' train station in the Loop that serves multiple CTA lines, including the Orange Line.
  • E. Malden Center station
    Malden Center station is a major transit hub in Malden, Massachusetts, serving both MBTA Orange Line subway and commuter rail services.
  • 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_69a49427d98881908646d6c63b8cea1e completed March 1, 2026, 7:31 p.m.
NER Named-entity recognition batch_69a4bd58d8d88190b8d9c9c9de7f4e97 completed March 1, 2026, 10:27 p.m.
NED1 Entity disambiguation (via context triple) batch_69ace55382c88190b838478f3c178c2d completed March 8, 2026, 2:56 a.m.
NEDg Description generation batch_69ace5fb515081908acadef0303b8f6e completed March 8, 2026, 2:59 a.m.
NED2 Entity disambiguation (via description) batch_69ace9ba4b3481908d03636d8f72d04c completed March 8, 2026, 3:15 a.m.
Created at: March 1, 2026, 7:45 p.m.