Triple

T9199223
Position Surface form Disambiguated ID Type / Status
Subject Amtrak Northeast Corridor routes E220792 entity
Predicate historicalPredecessor P97 FINISHED
Object Pennsylvania Railroad main line E77222 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: Pennsylvania Railroad main line | Statement: [Amtrak Northeast Corridor routes, historicalPredecessor, Pennsylvania Railroad main line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Pennsylvania Railroad main line
Context triple: [Amtrak Northeast Corridor routes, historicalPredecessor, Pennsylvania Railroad main line]
  • A. Pennsylvania Railroad Lines East chosen
    Pennsylvania Railroad Lines East was the eastern operating division of the Pennsylvania Railroad, managing its passenger and freight services across key routes in the northeastern United States.
  • B. New York Central Railroad main line
    The New York Central Railroad main line, famously known as the Water Level Route, was a major U.S. rail corridor connecting the Midwest to the East Coast along relatively flat terrain that followed river valleys and the Great Lakes.
  • C. Southern Main Line
    The Southern Main Line is a major Swedish railway route that connects key cities in the southern part of the country and serves as an important corridor for both passenger and freight traffic.
  • D. Main Line (Philadelphia to Pittsburgh)
    Main Line (Philadelphia to Pittsburgh) was a major east–west rail corridor across Pennsylvania that formed the core route linking Philadelphia and Pittsburgh and became central to the state’s transportation and economic development.
  • E. Panhandle Route of the Pennsylvania Railroad
    The Panhandle Route of the Pennsylvania Railroad was a major historic rail line that connected Pittsburgh with the American Midwest, serving as an important freight and passenger corridor in the 19th and early 20th centuries.
  • 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_69ca83e8e9248190862cf3e41693b310 completed March 30, 2026, 2:08 p.m.
NER Named-entity recognition batch_69ccd880ab808190aa785a5f1e5d5976 completed April 1, 2026, 8:34 a.m.
NED1 Entity disambiguation (via context triple) batch_69d05c40267c8190926f4d5c912d0f45 completed April 4, 2026, 12:33 a.m.
Created at: March 30, 2026, 7:25 p.m.