Triple

T21690626
Position Surface form Disambiguated ID Type / Status
Subject Amtrak Pere Marquette line E535352 entity
Predicate namedAfter P63 FINISHED
Object Pere Marquette Railway NE NERFINISHED

How this triple was built (3 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: Pere Marquette Railway | Statement: [Amtrak Pere Marquette line, namedAfter, Pere Marquette Railway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Pere Marquette Railway
Context triple: [Amtrak Pere Marquette line, namedAfter, Pere Marquette Railway]
  • A. Lake Shore and Michigan Southern Railway
    The Lake Shore and Michigan Southern Railway was a major 19th-century American railroad that formed a key part of the New York Central system, linking the Great Lakes region with the Eastern United States.
  • B. Great Lakes Central Railroad
    Great Lakes Central Railroad is a regional freight railroad in Michigan that operates former state-owned lines across the central and northern parts of the state.
  • C. Michigan Central Railroad
    Michigan Central Railroad was a major 19th- and early 20th-century American railroad company that operated key passenger and freight routes across Michigan and the Great Lakes region, connecting to Chicago and the broader Midwest rail network.
  • D. Milwaukee Road
    The Milwaukee Road was a major American railroad that operated an extensive Midwestern and Pacific Northwest network, noted especially for its electrified mountain routes and eventual bankruptcy in the late 20th century.
  • E. North Western State Railway
    The North Western State Railway was a major railway system of British India that served much of what is now Pakistan and parts of northern India before being reorganized after independence.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Pere Marquette Railway
Target entity description: Pere Marquette Railway was a historic Midwestern U.S. railroad company that operated primarily in Michigan and surrounding states in the late 19th and early 20th centuries.
  • A. Lake Shore and Michigan Southern Railway
    The Lake Shore and Michigan Southern Railway was a major 19th-century American railroad that formed a key part of the New York Central system, linking the Great Lakes region with the Eastern United States.
  • B. Great Lakes Central Railroad
    Great Lakes Central Railroad is a regional freight railroad in Michigan that operates former state-owned lines across the central and northern parts of the state.
  • C. Michigan Central Railroad
    Michigan Central Railroad was a major 19th- and early 20th-century American railroad company that operated key passenger and freight routes across Michigan and the Great Lakes region, connecting to Chicago and the broader Midwest rail network.
  • D. Milwaukee Road
    The Milwaukee Road was a major American railroad that operated an extensive Midwestern and Pacific Northwest network, noted especially for its electrified mountain routes and eventual bankruptcy in the late 20th century.
  • E. North Western State Railway
    The North Western State Railway was a major railway system of British India that served much of what is now Pakistan and parts of northern India before being reorganized after independence.
  • F. None of above. chosen

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_69e0c46a6ee481908836e1420fb78c9b completed April 16, 2026, 11:13 a.m.
NER Named-entity recognition batch_69ef96cfaab08190b400e1538afc8c43 completed April 27, 2026, 5:03 p.m.
Created at: April 16, 2026, 6:44 p.m.