Triple

T23207513
Position Surface form Disambiguated ID Type / Status
Subject Rona Ambrose E580499 entity
Predicate boardMemberOf P10 FINISHED
Object Trans Mountain Corporation
Trans Mountain Corporation is a Canadian government-owned company that operates the Trans Mountain oil pipeline system, transporting crude and refined petroleum products from Alberta to the Pacific Coast.
E1575564 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: Trans Mountain Corporation | Statement: [Rona Ambrose, boardMemberOf, Trans Mountain Corporation]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Trans Mountain Corporation
Context triple: [Rona Ambrose, boardMemberOf, Trans Mountain Corporation]
  • A. Alyeska Pipeline Service Company
    Alyeska Pipeline Service Company is an American oil pipeline company that manages and maintains the Trans-Alaska Pipeline System across Alaska.
  • B. ENMAX Corporation
    ENMAX Corporation is a Canadian energy company based in Calgary that generates, distributes, and sells electricity and related services.
  • C. Prairie Oil and Gas Company
    Prairie Oil and Gas Company was a regional petroleum firm that emerged as one of the successor companies created from the court-ordered breakup of the Standard Oil monopoly in the early 20th century.
  • D. Northern Pipeline Construction Company
    Northern Pipeline Construction Company was a U.S. firm involved in pipeline construction that became notable as the petitioner in the landmark Supreme Court case Northern Pipeline Construction Co. v. Marathon Pipe Line Co.
  • E. Marathon Pipe Line Company
    Marathon Pipe Line Company is a U.S. pipeline company known for its role in the landmark Supreme Court case Northern Pipeline Construction Co. v. Marathon Pipe Line Co., which reshaped the constitutional limits of federal bankruptcy courts.
  • 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: Trans Mountain Corporation
Triple: [Rona Ambrose, boardMemberOf, Trans Mountain Corporation]
Generated description
Trans Mountain Corporation is a Canadian government-owned company that operates the Trans Mountain oil pipeline system, transporting crude and refined petroleum products from Alberta to the Pacific Coast.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Trans Mountain Corporation
Target entity description: Trans Mountain Corporation is a Canadian government-owned company that operates the Trans Mountain oil pipeline system, transporting crude and refined petroleum products from Alberta to the Pacific Coast.
  • A. Alyeska Pipeline Service Company
    Alyeska Pipeline Service Company is an American oil pipeline company that manages and maintains the Trans-Alaska Pipeline System across Alaska.
  • B. ENMAX Corporation
    ENMAX Corporation is a Canadian energy company based in Calgary that generates, distributes, and sells electricity and related services.
  • C. Prairie Oil and Gas Company
    Prairie Oil and Gas Company was a regional petroleum firm that emerged as one of the successor companies created from the court-ordered breakup of the Standard Oil monopoly in the early 20th century.
  • D. Northern Pipeline Construction Company
    Northern Pipeline Construction Company was a U.S. firm involved in pipeline construction that became notable as the petitioner in the landmark Supreme Court case Northern Pipeline Construction Co. v. Marathon Pipe Line Co.
  • E. Marathon Pipe Line Company
    Marathon Pipe Line Company is a U.S. pipeline company known for its role in the landmark Supreme Court case Northern Pipeline Construction Co. v. Marathon Pipe Line Co., which reshaped the constitutional limits of federal bankruptcy courts.
  • 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_69e24602ae1481908aaa6bc7ca493867 completed April 17, 2026, 2:38 p.m.
NER Named-entity recognition batch_69f1907d8be08190a100d99efaff9964 completed April 29, 2026, 5 a.m.
NED1 Entity disambiguation (via context triple) batch_6a0c30c4df1481908bdab9ec52fdd9f6 completed May 19, 2026, 9:43 a.m.
NEDg Description generation batch_6a0c330135cc8190b5a0e512bda6277d completed May 19, 2026, 9:53 a.m.
NED2 Entity disambiguation (via description) batch_6a0c375dd5a4819097a80ae43a1c4442 completed May 19, 2026, 10:11 a.m.
Created at: April 17, 2026, 4:07 p.m.