Triple

T8936386
Position Surface form Disambiguated ID Type / Status
Subject MBTA Green Line rolling stock E212786 entity
Predicate historicallyIncludedClass P59380 FINISHED
Object PCC streetcar E79857 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: PCC streetcar | Statement: [MBTA Green Line rolling stock, historicallyIncludedClass, PCC streetcar]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: PCC streetcar
Context triple: [MBTA Green Line rolling stock, historicallyIncludedClass, PCC streetcar]
  • A. PCC streetcar chosen
    The PCC streetcar is a standardized, streamlined electric tram design introduced in the 1930s that became one of the most widely used and influential streetcar types in North America and beyond.
  • B. S-Line streetcar
    The S-Line streetcar is a modern streetcar route in the Salt Lake City area that connects the Sugar House neighborhood with the regional light rail network as part of the public transit system.
  • C. M-Line Streetcar
    The M-Line Streetcar is a heritage streetcar service in Dallas, Texas, that operates vintage trolleys through the Uptown area and connects to downtown.
  • D. Brill streetcar
    The Brill streetcar is a historic electric tramcar model built by the J.G. Brill Company, known for its early 20th-century use in urban street railway systems and preservation in heritage streetcar fleets.
  • E. ALRV streetcar
    The ALRV streetcar was a longer, articulated light rail vehicle used by the Toronto Transit Commission before being phased out in favor of newer models.
  • 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: historicallyIncludedClass
Context triple: [MBTA Green Line rolling stock, historicallyIncludedClass, PCC streetcar]
  • A. historicallyConsidered
    Indicates that one entity has been regarded or classified in a particular way relative to another entity during a past historical period.
  • B. includesHistoricResource
    Indicates that one entity contains, encompasses, or otherwise has within its scope a historic resource.
  • C. historicallyEncompassed chosen
    Indicates that one entity previously included, covered, or contained another entity within its scope, extent, or boundaries during a past historical period.
  • D. historicallyImplementedAs
    Indicates that one entity was used or realized as another entity in the past, even if that is no longer the case.
  • E. historicallyExtendedBy
    Indicates that something has been continued, expanded, or carried forward over time by another, later entity or development.
  • 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_69ca839694c88190b324ffeb43d23b08 completed March 30, 2026, 2:07 p.m.
NER Named-entity recognition batch_69cc66928cec8190915636d663f843af completed April 1, 2026, 12:28 a.m.
NED1 Entity disambiguation (via context triple) batch_69cfc1e241a08190bc935c4f0dde9d2f completed April 3, 2026, 1:34 p.m.
PD Predicate disambiguation batch_69cc5ed3286c8190a21de2ee11f2639f completed March 31, 2026, 11:54 p.m.
Created at: March 30, 2026, 6:58 p.m.