Triple

T15434263
Position Surface form Disambiguated ID Type / Status
Subject Van de Graaff generator E369717 entity
Predicate developedBy P73 FINISHED
Object Robert J. Van de Graaff E1157406 NE FINISHED

How this triple was built (2 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: Robert J. Van de Graaff | Statement: [Van de Graaff generator, developedBy, Robert J. Van de Graaff]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Robert J. Van de Graaff
Context triple: [Van de Graaff generator, developedBy, Robert J. Van de Graaff]
  • A. Robert J. Van de Graaff chosen
    Robert J. Van de Graaff was an American physicist best known for inventing the high-voltage electrostatic generator that bears his name, widely used in nuclear physics research and education.
  • B. Cornelis Jacob van de Graaff
    Cornelis Jacob van de Graaff was an 18th-century Dutch colonial governor of the Cape Colony, after whom the South African town of Graaff-Reinet is named.
  • C. Francis Bitter
    Francis Bitter was an American physicist known for his pioneering work in magnet technology and for developing the Bitter electromagnet used to generate extremely strong magnetic fields.
  • D. John J. Pierce
    John J. Pierce is an American science fiction editor and critic known for his influential work in genre magazines and scholarship.
  • E. Robert B. Leighton
    Robert B. Leighton was an American experimental physicist and educator known for his contributions to cosmic-ray and infrared astronomy and for coauthoring the influential Feynman Lectures on Physics.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 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_69d85a19180081909925012fbf4e62a3 completed April 10, 2026, 2:02 a.m.
NER Named-entity recognition batch_69e03edb3ec481908b26164d4470c9bc completed April 16, 2026, 1:43 a.m.
NED1 Entity disambiguation (via context triple) batch_69ff2cf5d788819086a94af42c2ec21a completed May 9, 2026, 12:47 p.m.
Created at: April 10, 2026, 3:21 a.m.