Triple

T1760030
Position Surface form Disambiguated ID Type / Status
Subject North Quincy station E38634 entity
Predicate replacedService P1294 FINISHED
Object Old Colony Railroad commuter rail service in the corridor E177251 NE FINISHED

How this triple was built (2 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: Old Colony Railroad commuter rail service in the corridor | Statement: [North Quincy station, replacedService, Old Colony Railroad commuter rail service in the corridor]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Old Colony Railroad commuter rail service in the corridor
Context triple: [North Quincy station, replacedService, Old Colony Railroad commuter rail service in the corridor]
  • A. Burlington Route commuter service
    Burlington Route commuter service was the historic Chicago-area commuter rail operation of the Chicago, Burlington and Quincy Railroad that later evolved into today’s Metra BNSF Railway Line.
  • B. MBTA Commuter Rail (Old Colony Lines at JFK/UMass) chosen
    MBTA Commuter Rail (Old Colony Lines at JFK/UMass) is a set of commuter rail services connecting Boston’s JFK/UMass station to southeastern Massachusetts communities along the restored Old Colony rail corridors.
  • C. MBTA Commuter Rail Greenbush Line
    The MBTA Commuter Rail Greenbush Line is a Massachusetts Bay Transportation Authority commuter rail route connecting Boston’s South Station with coastal South Shore communities, including towns such as Hingham, Cohasset, and Scituate.
  • D. MBTA Commuter Rail network
    The MBTA Commuter Rail network is a regional passenger rail system serving Greater Boston and surrounding communities in Massachusetts and parts of Rhode Island.
  • E. MBTA Commuter Rail Lowell Line
    The MBTA Commuter Rail Lowell Line is a regional rail service in Greater Boston that connects Boston’s North Station with the city of Lowell and intermediate communities in northeastern Massachusetts.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 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_69a8862d562481908d7025a1c1f67c0d completed March 4, 2026, 7:21 p.m.
NER Named-entity recognition batch_69aa643f6a188190a250d5982badcce5 completed March 6, 2026, 5:21 a.m.
NED1 Entity disambiguation (via context triple) batch_69ada0ec80f48190bcdc92e5ed4e44e6 completed March 8, 2026, 4:16 p.m.
Created at: March 4, 2026, 7:31 p.m.