Triple

T17068903
Position Surface form Disambiguated ID Type / Status
Subject Westinghouse High School, Pittsburgh E414161 entity
Predicate hasAlumnus P51 FINISHED
Object Chuck Cooper
Chuck Cooper was a pioneering American basketball player best known as one of the first African Americans drafted into the NBA.
E1247358 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: Chuck Cooper | Statement: [Westinghouse High School, Pittsburgh, hasAlumnus, Chuck Cooper]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Chuck Cooper
Context triple: [Westinghouse High School, Pittsburgh, hasAlumnus, Chuck Cooper]
  • A. Walter Fauntroy
    Walter Fauntroy is an American civil rights activist, pastor, and longtime Washington, D.C. delegate to the U.S. House of Representatives who played a key role in Black political organizing in the late 20th century.
  • B. Melvin Barcliff
    Melvin Barcliff, better known by his stage name Magoo, was an American rapper recognized for his collaborations with Timbaland and contributions to late-1990s and early-2000s hip hop.
  • C. Melvin Edmonds
    Melvin Edmonds was an American R&B singer best known as a founding member of the group After 7.
  • D. Horace Grant Underwood
    Horace Grant Underwood was an American Presbyterian missionary and educator who played a key role in the introduction of modern education and Protestant Christianity to Korea in the late 19th and early 20th centuries.
  • E. Pervis Ellison
    Pervis Ellison is a former American basketball center best known for leading the University of Louisville to the 1986 NCAA championship and later playing in the NBA as the first overall pick in the 1989 draft.
  • 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: Chuck Cooper
Triple: [Westinghouse High School, Pittsburgh, hasAlumnus, Chuck Cooper]
Generated description
Chuck Cooper was a pioneering American basketball player best known as one of the first African Americans drafted into the NBA.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Chuck Cooper
Target entity description: Chuck Cooper was a pioneering American basketball player best known as one of the first African Americans drafted into the NBA.
  • A. Walter Fauntroy
    Walter Fauntroy is an American civil rights activist, pastor, and longtime Washington, D.C. delegate to the U.S. House of Representatives who played a key role in Black political organizing in the late 20th century.
  • B. Melvin Barcliff
    Melvin Barcliff, better known by his stage name Magoo, was an American rapper recognized for his collaborations with Timbaland and contributions to late-1990s and early-2000s hip hop.
  • C. Melvin Edmonds
    Melvin Edmonds was an American R&B singer best known as a founding member of the group After 7.
  • D. Horace Grant Underwood
    Horace Grant Underwood was an American Presbyterian missionary and educator who played a key role in the introduction of modern education and Protestant Christianity to Korea in the late 19th and early 20th centuries.
  • E. Pervis Ellison
    Pervis Ellison is a former American basketball center best known for leading the University of Louisville to the 1986 NCAA championship and later playing in the NBA as the first overall pick in the 1989 draft.
  • 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_69d886cef44c8190ba56c44b4e863e64 completed April 10, 2026, 5:12 a.m.
NER Named-entity recognition batch_69e3dbbeb2a48190a733a4cc829c16de completed April 18, 2026, 7:30 p.m.
NED1 Entity disambiguation (via context triple) batch_6a01235278d48190bacc7881b9eb1ea1 completed May 11, 2026, 12:31 a.m.
NEDg Description generation batch_6a012425fb808190ad9bcada9429e437 completed May 11, 2026, 12:34 a.m.
NED2 Entity disambiguation (via description) batch_6a01248b53d88190a4ec4fa6cee89bb1 completed May 11, 2026, 12:36 a.m.
Created at: April 10, 2026, 5:34 a.m.