Triple

T1400271
Position Surface form Disambiguated ID Type / Status
Subject Canadian National Railway E30762 entity
Predicate hasSubsidiary P254 FINISHED
Object Grand Trunk Corporation
Grand Trunk Corporation is a U.S.-based holding company that oversees Canadian National Railway’s rail operations and assets in the United States.
E168254 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: Grand Trunk Corporation | Statement: [Canadian National Railway, hasSubsidiary, Grand Trunk Corporation]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Grand Trunk Corporation
Context triple: [Canadian National Railway, hasSubsidiary, Grand Trunk Corporation]
  • A. Grand Trunk Pacific Railway
    The Grand Trunk Pacific Railway was an early 20th-century Canadian transcontinental railway that played a key role in opening Western Canada to settlement and trade before its assets were absorbed into the national rail system.
  • B. Grand Trunk Railway
    The Grand Trunk Railway was a major 19th- and early 20th-century Canadian railway system that played a key role in linking central Canada with the Atlantic coast and the United States before being absorbed into the Canadian National Railway.
  • C. Canadian National Railway
    Canadian National Railway is a major Canadian freight railway company that operates an extensive rail network across Canada and into the United States.
  • D. Canadian Northern Railway
    The Canadian Northern Railway was an early 20th-century Canadian transcontinental railway whose network later became a core component of the Canadian National Railway system.
  • E. Canada Lands Company
    Canada Lands Company is a federal Crown corporation in Canada responsible for managing, redeveloping, and optimizing the value of strategic real estate and attractions owned by the Government of Canada.
  • 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: Grand Trunk Corporation
Triple: [Canadian National Railway, hasSubsidiary, Grand Trunk Corporation]
Generated description
Grand Trunk Corporation is a U.S.-based holding company that oversees Canadian National Railway’s rail operations and assets in the United States.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Grand Trunk Corporation
Target entity description: Grand Trunk Corporation is a U.S.-based holding company that oversees Canadian National Railway’s rail operations and assets in the United States.
  • A. Grand Trunk Pacific Railway
    The Grand Trunk Pacific Railway was an early 20th-century Canadian transcontinental railway that played a key role in opening Western Canada to settlement and trade before its assets were absorbed into the national rail system.
  • B. Grand Trunk Railway
    The Grand Trunk Railway was a major 19th- and early 20th-century Canadian railway system that played a key role in linking central Canada with the Atlantic coast and the United States before being absorbed into the Canadian National Railway.
  • C. Canadian National Railway
    Canadian National Railway is a major Canadian freight railway company that operates an extensive rail network across Canada and into the United States.
  • D. Canadian Northern Railway
    The Canadian Northern Railway was an early 20th-century Canadian transcontinental railway whose network later became a core component of the Canadian National Railway system.
  • E. Canada Lands Company
    Canada Lands Company is a federal Crown corporation in Canada responsible for managing, redeveloping, and optimizing the value of strategic real estate and attractions owned by the Government of Canada.
  • F. None of above. chosen

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_69a498fd4e408190bd73eca30ea9754c completed March 1, 2026, 7:52 p.m.
NER Named-entity recognition batch_69a4c39c4c148190997150996ca26a99 completed March 1, 2026, 10:54 p.m.
NED1 Entity disambiguation (via context triple) batch_69ad159920d48190ace6bc4d37af75eb completed March 8, 2026, 6:22 a.m.
NEDg Description generation batch_69ad165a88388190b43067a5a8c625bf completed March 8, 2026, 6:25 a.m.
NED2 Entity disambiguation (via description) batch_69ad16be44f88190ab4ea4c9638bd141 completed March 8, 2026, 6:27 a.m.
Created at: March 1, 2026, 7:59 p.m.