Triple

T2952313
Position Surface form Disambiguated ID Type / Status
Subject Chevron Corporation E79846 entity
Predicate notableAcquisition P2511 FINISHED
Object Unocal Corporation
Unocal Corporation was a major American oil and gas company, historically known for its exploration and production activities in the United States and Asia, before being acquired by Chevron.
 E315065 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: Unocal Corporation | Statement: [Chevron Corporation, notableAcquisition, Unocal Corporation]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Unocal Corporation
Context triple: [Chevron Corporation, notableAcquisition, Unocal Corporation]
  • A. Sinclair Oil Corporation
    Sinclair Oil Corporation is an American petroleum company best known for its dinosaur logo and network of gas stations and refineries across the United States.
  • B. Oil Center
    Oil Center is a small unincorporated community in Lea County, New Mexico, historically associated with the region’s petroleum industry.
  • C. Kinross
    Kinross is a small historic town in Perth and Kinross, Scotland, situated near Loch Leven and known as a gateway between central Scotland and the Highlands.
  • D. Kerr-McGee Oil Industries
    Kerr-McGee Oil Industries was a major American energy company involved in oil and gas exploration, production, and chemical manufacturing before its acquisition by Anadarko Petroleum in 2006.
  • E. Halliburton
    Halliburton is a major American multinational corporation that provides products and services to the oil and gas industry worldwide.
  • 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: Unocal Corporation
Triple: [Chevron Corporation, notableAcquisition, Unocal Corporation]
Generated description
Unocal Corporation was a major American oil and gas company, historically known for its exploration and production activities in the United States and Asia, before being acquired by Chevron.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Unocal Corporation
Target entity description: Unocal Corporation was a major American oil and gas company, historically known for its exploration and production activities in the United States and Asia, before being acquired by Chevron.
  • A. Sinclair Oil Corporation
    Sinclair Oil Corporation is an American petroleum company best known for its dinosaur logo and network of gas stations and refineries across the United States.
  • B. Oil Center
    Oil Center is a small unincorporated community in Lea County, New Mexico, historically associated with the region’s petroleum industry.
  • C. Kinross
    Kinross is a small historic town in Perth and Kinross, Scotland, situated near Loch Leven and known as a gateway between central Scotland and the Highlands.
  • D. Kerr-McGee Oil Industries
    Kerr-McGee Oil Industries was a major American energy company involved in oil and gas exploration, production, and chemical manufacturing before its acquisition by Anadarko Petroleum in 2006.
  • E. Halliburton
    Halliburton is a major American multinational corporation that provides products and services to the oil and gas industry worldwide.
  • 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_69ad8b1276588190a374a0b12e0f7bdf completed March 8, 2026, 2:43 p.m.
NER Named-entity recognition batch_69ad98fcea5c8190b7d80de942bcb4f7 completed March 8, 2026, 3:42 p.m.
NED1 Entity disambiguation (via context triple) batch_69b0fc82d1248190869beffffc0bf956 completed March 11, 2026, 5:24 a.m.
NEDg Description generation batch_69b0fd25e07c819088b2b1bcef4cf54e completed March 11, 2026, 5:27 a.m.
NED2 Entity disambiguation (via description) batch_69b100ecbee081908832ddec0efdc751 completed March 11, 2026, 5:43 a.m.
Created at: March 8, 2026, 2:57 p.m.