Triple

T2105506
Position Surface form Disambiguated ID Type / Status
Subject Boston and Albany Railroad Highland branch E37184 entity
Predicate rightOfWayCurrentlyUsedBy P13660 FINISHED
Object Massachusetts Bay Transportation Authority E2866 NE FINISHED

How this triple was built (3 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: Massachusetts Bay Transportation Authority | Statement: [Boston and Albany Railroad Highland branch, rightOfWayCurrentlyUsedBy, Massachusetts Bay Transportation Authority]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Massachusetts Bay Transportation Authority
Context triple: [Boston and Albany Railroad Highland branch, rightOfWayCurrentlyUsedBy, Massachusetts Bay Transportation Authority]
  • A. MBTA chosen
    The MBTA (Massachusetts Bay Transportation Authority) is the public transit agency that operates subway, bus, commuter rail, and ferry services in the Greater Boston area.
  • B. Cape Cod Regional Transit Authority
    The Cape Cod Regional Transit Authority is a public transportation agency that operates bus and paratransit services throughout Cape Cod, Massachusetts.
  • C. 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.
  • D. Lowell Regional Transit Authority
    The Lowell Regional Transit Authority is a public transportation agency that operates bus and paratransit services in Lowell, Massachusetts and surrounding communities.
  • E. MBTA Braintree Branch
    The MBTA Braintree Branch is a southern extension of Boston’s Red Line rapid transit system that runs from JFK/UMass through several South Shore communities to Braintree.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
PD Predicate disambiguation gpt-5-mini-2025-08-07 
Target predicate: rightOfWayCurrentlyUsedBy
Context triple: [Boston and Albany Railroad Highland branch, rightOfWayCurrentlyUsedBy, Massachusetts Bay Transportation Authority]
  • A. someRightOfWayUsedBy chosen
    Indicates that a particular right of way is utilized or traversed by a specified user, route, or transport entity.
  • B. hasRightOfWay
    Indicates that one entity is entitled to proceed or act before another in a shared space or interaction, without having to yield.
  • C. roadUse
    Indicates that an entity utilizes or travels on a particular road or roadway for movement or transport.
  • D. ownerOfRightOfWay
    Indicates that one entity holds the legal right to pass through or use a specific path, route, or area on another entity’s property.
  • E. crossedByHighway
    Indicates that a highway passes across or through the extent of a given entity or area.
  • F. None of above.

Provenance (4 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_69a8861828948190924aa30c08806b3a completed March 4, 2026, 7:20 p.m.
NER Named-entity recognition batch_69abbadcd4a081909d60b9b241950335 completed March 7, 2026, 5:42 a.m.
NED1 Entity disambiguation (via context triple) batch_69ae305263f88190b448fb134163d5aa completed March 9, 2026, 2:28 a.m.
PD Predicate disambiguation batch_69abb7b7b6288190afa11b4d93bd5666 completed March 7, 2026, 5:29 a.m.
Created at: March 4, 2026, 7:43 p.m.