Triple

T1295271
Position Surface form Disambiguated ID Type / Status
Subject Metra BNSF Railway Line E27639 entity
Predicate historicalOperator P2834 FINISHED
Object Burlington Northern Railroad
Burlington Northern Railroad was a major American freight railroad formed in 1970 through the merger of several large railroads, later becoming part of BNSF Railway.
E3839 NE FINISHED

How this triple was built (4 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: Burlington Northern Railroad | Statement: [Metra BNSF Railway Line, historicalOperator, Burlington Northern Railroad]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Burlington Northern Railroad
Context triple: [Metra BNSF Railway Line, historicalOperator, Burlington Northern Railroad]
  • A. BNSF Railway
    BNSF Railway is one of the largest freight railroad networks in North America, operating an extensive system that spans the United States and parts of Canada and Mexico.
  • B. Union Pacific Railroad
    Union Pacific Railroad is one of the largest freight rail networks in the United States, operating an extensive system that spans the western two-thirds of the country.
  • C. Consolidated Rail Corporation
    Consolidated Rail Corporation, commonly known as Conrail, was a major U.S. freight railroad created in the 1970s to take over and revitalize the operations of several bankrupt Northeastern railroads.
  • D. Missouri Pacific Railroad
    Missouri Pacific Railroad was a major American Class I railroad that operated across the Midwestern and Southwestern United States, playing a key role in regional freight and passenger transportation before its merger into the Union Pacific system.
  • E. Norfolk and Western Railway
    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.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Burlington Northern Railroad
Triple: [Metra BNSF Railway Line, historicalOperator, Burlington Northern Railroad]
Generated description
Burlington Northern Railroad was a major American freight railroad formed in 1970 through the merger of several large railroads, later becoming part of BNSF Railway.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Burlington Northern Railroad
Target entity description: Burlington Northern Railroad was a major American freight railroad formed in 1970 through the merger of several large railroads, later becoming part of BNSF Railway.
  • A. BNSF Railway chosen
    BNSF Railway is one of the largest freight railroad networks in North America, operating an extensive system that spans the United States and parts of Canada and Mexico.
  • B. Union Pacific Railroad
    Union Pacific Railroad is one of the largest freight rail networks in the United States, operating an extensive system that spans the western two-thirds of the country.
  • C. Consolidated Rail Corporation
    Consolidated Rail Corporation, commonly known as Conrail, was a major U.S. freight railroad created in the 1970s to take over and revitalize the operations of several bankrupt Northeastern railroads.
  • D. Missouri Pacific Railroad
    Missouri Pacific Railroad was a major American Class I railroad that operated across the Midwestern and Southwestern United States, playing a key role in regional freight and passenger transportation before its merger into the Union Pacific system.
  • E. Norfolk and Western Railway
    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.
  • F. None of above.

Provenance (5 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_69a496d6682881909ba658f1c1e0e2b0 completed March 1, 2026, 7:43 p.m.
NER Named-entity recognition batch_69a4c0f4031481908f5e3a53d8a72929 completed March 1, 2026, 10:43 p.m.
NED1 Entity disambiguation (via context triple) batch_69ad718af9a08190b16c7df72d1ef1d3 completed March 8, 2026, 12:54 p.m.
NEDg Description generation batch_69ad73705bd081909c021e55f7c1882b completed March 8, 2026, 1:02 p.m.
NED2 Entity disambiguation (via description) batch_69ad73d9746c8190b6d673bdb8c202d3 completed March 8, 2026, 1:04 p.m.
Created at: March 1, 2026, 7:51 p.m.