Triple

T2090259
Position Surface form Disambiguated ID Type / Status
Subject Washington Metro Red Line E32650 entity
Predicate rollingStock P1305 FINISHED
Object WMATA 3000-series railcars E127414 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: WMATA 3000-series railcars | Statement: [Washington Metro Red Line, rollingStock, WMATA 3000-series railcars]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: WMATA 3000-series railcars
Context triple: [Washington Metro Red Line, rollingStock, WMATA 3000-series railcars]
  • A. WMATA 3000-series railcar chosen
    The WMATA 3000-series railcar is a generation of Washington Metro rapid transit vehicles used across multiple lines in the system, featuring stainless-steel construction and updated interiors compared to earlier series.
  • B. WMATA 5000-series railcar
    The WMATA 5000-series railcar is a generation of Washington Metro rapid transit cars built for improved performance and passenger amenities, used across multiple lines in the system.
  • C. WMATA 6000-series railcar
    The WMATA 6000-series railcar is a generation of Washington Metro rapid transit cars featuring modernized interiors, improved safety systems, and updated propulsion technology used across multiple lines in the system.
  • D. WMATA 7000-series railcar
    The WMATA 7000-series railcar is a modern, stainless-steel rapid transit car used by the Washington Metro system, featuring improved safety, digital displays, and updated interiors compared to older fleets.
  • E. WMATA 2000-series railcar
    The WMATA 2000-series railcar is a generation of Washington Metro rapid transit vehicles used across the system’s lines, featuring stainless-steel construction and updated interiors compared to earlier fleets.
  • 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_69a885eba0708190999696a45cbec816 completed March 4, 2026, 7:20 p.m.
NER Named-entity recognition batch_69abba7443448190a2642769d0b5fb93 completed March 7, 2026, 5:41 a.m.
NED1 Entity disambiguation (via context triple) batch_69ae305aacc08190904a358fc4207075 completed March 9, 2026, 2:28 a.m.
Created at: March 4, 2026, 7:43 p.m.