Triple

T92506
Position Surface form Disambiguated ID Type / Status
Subject Stephen D. Bechtel Jr. E1858 entity
Predicate child P120 FINISHED
Object Riley P. Bechtel
Riley P. Bechtel is an American billionaire businessman who served as chairman and CEO of Bechtel Corporation, one of the world’s largest engineering and construction firms.
 E50138 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: Riley P. Bechtel | Statement: [Stephen D. Bechtel Jr., child, Riley P. Bechtel]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Riley P. Bechtel
Context triple: [Stephen D. Bechtel Jr., child, Riley P. Bechtel]
  • A. Stephen D. Bechtel Jr.
    Stephen D. Bechtel Jr. was an American engineer and business executive who led the Bechtel Corporation into becoming one of the world’s largest engineering and construction firms and was widely recognized for his contributions to industry and public service.
  • B. Matthias N. Forney
    Matthias N. Forney was a 19th-century American mechanical engineer and locomotive designer who played a key role in the early professionalization of mechanical engineering in the United States.
  • C. Stephen D. Bechtel Sr.
    Stephen D. Bechtel Sr. was an American engineer and businessman who led and expanded the Bechtel Corporation into one of the world’s largest engineering and construction firms.
  • D. Harold A. Wheeler
    Harold A. Wheeler was an influential American electrical engineer and inventor known for his pioneering contributions to radio and radar technology.
  • E. John R. Steelman
    John R. Steelman was an American administrator and labor mediator who served as a top aide to President Harry S. Truman and became one of the most influential behind-the-scenes figures in the postwar White House.
  • 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: Riley P. Bechtel
Triple: [Stephen D. Bechtel Jr., child, Riley P. Bechtel]
Generated description
Riley P. Bechtel is an American billionaire businessman who served as chairman and CEO of Bechtel Corporation, one of the world’s largest engineering and construction firms.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Riley P. Bechtel
Target entity description: Riley P. Bechtel is an American billionaire businessman who served as chairman and CEO of Bechtel Corporation, one of the world’s largest engineering and construction firms.
  • A. Stephen D. Bechtel Jr.
    Stephen D. Bechtel Jr. was an American engineer and business executive who led the Bechtel Corporation into becoming one of the world’s largest engineering and construction firms and was widely recognized for his contributions to industry and public service.
  • B. Matthias N. Forney
    Matthias N. Forney was a 19th-century American mechanical engineer and locomotive designer who played a key role in the early professionalization of mechanical engineering in the United States.
  • C. Stephen D. Bechtel Sr.
    Stephen D. Bechtel Sr. was an American engineer and businessman who led and expanded the Bechtel Corporation into one of the world’s largest engineering and construction firms.
  • D. Harold A. Wheeler
    Harold A. Wheeler was an influential American electrical engineer and inventor known for his pioneering contributions to radio and radar technology.
  • E. John R. Steelman
    John R. Steelman was an American administrator and labor mediator who served as a top aide to President Harry S. Truman and became one of the most influential behind-the-scenes figures in the postwar White House.
  • 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_69a24d1a97dc819094e6c021fe9b05a7 completed Feb. 28, 2026, 2:04 a.m.
NER Named-entity recognition batch_69a24faa6d608190920c8fc144e85e21 completed Feb. 28, 2026, 2:15 a.m.
NED1 Entity disambiguation (via context triple) batch_69a40acd14dc8190a9ab1a5e826a283a completed March 1, 2026, 9:45 a.m.
NEDg Description generation batch_69a40b36392c8190a771f3d6f9e97fc1 completed March 1, 2026, 9:47 a.m.
NED2 Entity disambiguation (via description) batch_69a40b8d85048190807a1af077e6431f completed March 1, 2026, 9:49 a.m.
Created at: Feb. 28, 2026, 2:07 a.m.