Triple

T15252528
Position Surface form Disambiguated ID Type / Status
Subject Merrimac Street E364552 entity
Predicate transportConnection P1298 FINISHED
Object MBTA commuter rail at North Station E708758 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: MBTA commuter rail at North Station | Statement: [Merrimac Street, transportConnection, MBTA commuter rail at North Station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: MBTA commuter rail at North Station
Context triple: [Merrimac Street, transportConnection, MBTA commuter rail at North Station]
  • A. MBTA Commuter Rail at North Station chosen
    MBTA Commuter Rail at North Station is a major Boston rail hub where regional trains connect downtown with numerous suburbs and outlying cities across Massachusetts.
  • B. MBTA Commuter Rail at South Station
    MBTA Commuter Rail at South Station is the regional rail service hub in downtown Boston that provides commuter train connections between the city and surrounding suburbs and cities across Massachusetts and neighboring states.
  • C. MBTA commuter rail at Back Bay
    MBTA commuter rail at Back Bay is a major Boston rail station where regional commuter trains connect with subway services, including the Green Line’s E Branch.
  • D. MBTA Orange Line at North Station
    MBTA Orange Line at North Station is a major Boston rapid transit stop located at the North Station transportation hub, providing subway connections to commuter rail lines and nearby sports and entertainment venues.
  • E. MBTA commuter rail at Porter station
    The MBTA commuter rail at Porter station is a regional rail stop in Cambridge, Massachusetts, providing connections between local subway service and longer-distance commuter trains on the Fitchburg Line.
  • 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_69d85a0dde7481908fc64d1e82d5d20d completed April 10, 2026, 2:01 a.m.
NER Named-entity recognition batch_69e007f728648190b2c86e4528542b65 completed April 15, 2026, 9:49 p.m.
NED1 Entity disambiguation (via context triple) batch_69fee5f390bc8190bc0180c118e1523c completed May 9, 2026, 7:44 a.m.
Created at: April 10, 2026, 3:13 a.m.