Triple

T23254321
Position Surface form Disambiguated ID Type / Status
Subject Norfolk Southern Railway main line E581822 entity
Predicate isBackboneOf P2565 FINISHED
Object Norfolk Southern east-of-Mississippi operations NE NERFINISHED

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 Southern east-of-Mississippi operations | Statement: [Norfolk Southern Railway main line, isBackboneOf, Norfolk Southern east-of-Mississippi operations]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Norfolk Southern east-of-Mississippi operations
Context triple: [Norfolk Southern Railway main line, isBackboneOf, Norfolk Southern east-of-Mississippi operations]
  • A. Norfolk Southern Railway chosen
    Norfolk Southern Railway is a major U.S. freight railroad company operating an extensive rail network across the eastern United States.
  • B. Norfolk Southern Southern Tier Line
    The Norfolk Southern Southern Tier Line is a freight rail corridor in New York State that also hosts Metro-North’s Port Jervis Line commuter service.
  • C. Norfolk Southern Hagerstown District
    The Norfolk Southern Hagerstown District is a freight rail line in the eastern United States operated by Norfolk Southern Railway, connecting key points in the Mid-Atlantic region including areas around Hagerstown, Maryland.
  • D. Norfolk Southern Railway lines
    Norfolk Southern Railway lines are a major freight rail network in the eastern United States, carrying a wide range of goods across numerous states and key industrial regions.
  • E. Southern Railway (U.S.)
    Southern Railway (U.S.) was a major American Class I railroad that operated primarily in the southeastern United States before becoming a key predecessor of Norfolk Southern Railway.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (2 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_69e246079f58819085eaa9c260906880 completed April 17, 2026, 2:39 p.m.
NER Named-entity recognition batch_69f193f9d904819097315c9bf031f667 completed April 29, 2026, 5:15 a.m.
Created at: April 17, 2026, 4:11 p.m.