Triple

T5989756
Position Surface form Disambiguated ID Type / Status
Subject WMATA 7000-series railcar E133314 entity
Predicate safetyImprovementOver P6555 FINISHED
Object WMATA 1000-series railcar E561696 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 1000-series railcar | Statement: [WMATA 7000-series railcar, safetyImprovementOver, WMATA 1000-series railcar]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: WMATA 1000-series railcar
Context triple: [WMATA 7000-series railcar, safetyImprovementOver, WMATA 1000-series railcar]
  • A. WMATA 1000-series railcar chosen
    The WMATA 1000-series railcar was the original generation of Metrorail subway cars in Washington, D.C., known for its early service on the system and later concerns over crashworthiness that led to its retirement.
  • B. WMATA 3000-series railcar
    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.
  • C. 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.
  • D. 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.
  • E. WMATA 4000-series railcar
    The WMATA 4000-series railcar was an older generation of Washington Metro rolling stock that served the D.C. region’s subway system 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.

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_69c0087010d081908bb8142342d63330 completed March 22, 2026, 3:19 p.m.
NER Named-entity recognition batch_69c04dc76fd481908cc3f327e532a1a6 completed March 22, 2026, 8:15 p.m.
NED1 Entity disambiguation (via context triple) batch_69c11cd900a48190b5aa83c28b3dfc1a completed March 23, 2026, 10:58 a.m.
Created at: March 22, 2026, 4:05 p.m.