Triple

T269492
Position Surface form Disambiguated ID Type / Status
Subject MBTA Green Line D branch E5598 entity
Predicate hasStation P35 FINISHED
Object Beaconsfield station
Beaconsfield station is a light rail stop on the Massachusetts Bay Transportation Authority’s Green Line D branch serving the Brookline area near Boston.
 E36654 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: Beaconsfield station | Statement: [MBTA Green Line D branch, hasStation, Beaconsfield station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Beaconsfield station
Context triple: [MBTA Green Line D branch, hasStation, Beaconsfield station]
  • A. Wollaston station
    Wollaston station is a Massachusetts Bay Transportation Authority (MBTA) Red Line rapid transit stop located in the Wollaston neighborhood of Quincy, Massachusetts.
  • B. High Brooms railway station
    High Brooms railway station is a suburban rail stop serving the High Brooms area of Royal Tunbridge Wells in Kent, England, on the Hastings line.
  • C. Cambridge railway station
    Cambridge railway station is the main rail hub serving the city of Cambridge, providing regional and long-distance passenger services connecting it to London and other major destinations.
  • D. Woking railway station
    Woking railway station is a major commuter and interchange rail hub in the town of Woking, providing key services between London and southwest England.
  • E. Bern railway station
    Bern railway station is the main railway hub of Switzerland’s capital city, serving as a central node for national and international train connections.
  • 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: Beaconsfield station
Triple: [MBTA Green Line D branch, hasStation, Beaconsfield station]
Generated description
Beaconsfield station is a light rail stop on the Massachusetts Bay Transportation Authority’s Green Line D branch serving the Brookline area near Boston.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Beaconsfield station
Target entity description: Beaconsfield station is a light rail stop on the Massachusetts Bay Transportation Authority’s Green Line D branch serving the Brookline area near Boston.
  • A. Wollaston station
    Wollaston station is a Massachusetts Bay Transportation Authority (MBTA) Red Line rapid transit stop located in the Wollaston neighborhood of Quincy, Massachusetts.
  • B. High Brooms railway station
    High Brooms railway station is a suburban rail stop serving the High Brooms area of Royal Tunbridge Wells in Kent, England, on the Hastings line.
  • C. Cambridge railway station
    Cambridge railway station is the main rail hub serving the city of Cambridge, providing regional and long-distance passenger services connecting it to London and other major destinations.
  • D. Woking railway station
    Woking railway station is a major commuter and interchange rail hub in the town of Woking, providing key services between London and southwest England.
  • E. Bern railway station
    Bern railway station is the main railway hub of Switzerland’s capital city, serving as a central node for national and international train connections.
  • 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_69a25853594c8190b05ec3a586ec88bf completed Feb. 28, 2026, 2:52 a.m.
NER Named-entity recognition batch_69a25db00ed48190be6f598807265356 completed Feb. 28, 2026, 3:14 a.m.
NED1 Entity disambiguation (via context triple) batch_69a399a419f88190aaab166719b0bb84 completed March 1, 2026, 1:43 a.m.
NEDg Description generation batch_69a39a07cbac819089946ac5480b3999 completed March 1, 2026, 1:44 a.m.
NED2 Entity disambiguation (via description) batch_69a39a921e2c8190b1bfdb3877f265aa completed March 1, 2026, 1:46 a.m.
Created at: Feb. 28, 2026, 2:57 a.m.