Triple

T15965772
Position Surface form Disambiguated ID Type / Status
Subject Roanoke Shops E387185 entity
Predicate associatedWith P37 FINISHED
Object Norfolk and Western Railway mechanical department E83243 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: Norfolk and Western Railway mechanical department | Statement: [Roanoke Shops, associatedWith, Norfolk and Western Railway mechanical department]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Norfolk and Western Railway mechanical department
Context triple: [Roanoke Shops, associatedWith, Norfolk and Western Railway mechanical department]
  • A. Norfolk and Western Railway chosen
    Norfolk and Western Railway was a major American railroad known for its coal-hauling operations and distinctive steam locomotive fleet, which later became part of Norfolk Southern Railway through merger.
  • B. Pennsylvania Railroad Mechanical Department
    The Pennsylvania Railroad Mechanical Department was the in-house engineering division of the Pennsylvania Railroad responsible for designing and developing its locomotives and rolling stock.
  • C. Locomotive Works
    Locomotive Works is the section of the Derby railway works dedicated to the construction, maintenance, and repair of railway locomotives.
  • D. Norfolk and Western Class A
    Norfolk and Western Class A was a series of powerful articulated steam locomotives built for high-speed freight service on the Norfolk and Western Railway in the mid-20th century.
  • E. Norfolk and Western Class J
    The Norfolk and Western Class J was a famed series of streamlined 4-8-4 steam locomotives renowned for their power, efficiency, and elegant design, used primarily for high-speed passenger service in the mid-20th century United States.
  • 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_69d86da94ccc819083d187f5dc6a123e completed April 10, 2026, 3:25 a.m.
NER Named-entity recognition batch_69e157258b3c8190a72c868bd055ed94 completed April 16, 2026, 9:39 p.m.
NED1 Entity disambiguation (via context triple) batch_69ffbe87149081909ac6129126f597c2 completed May 9, 2026, 11:08 p.m.
Created at: April 10, 2026, 4:54 a.m.