Triple

T2302053
Position Surface form Disambiguated ID Type / Status
Subject Pollsmoor Prison E51754 entity
Predicate notableInmate P22 FINISHED
Object Henri van Breda
Henri van Breda is a South African man convicted of murdering his parents and brother with an axe in a high-profile 2015 family massacre in Stellenbosch.
E275248 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: Henri van Breda | Statement: [Pollsmoor Prison, notableInmate, Henri van Breda]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Henri van Breda
Context triple: [Pollsmoor Prison, notableInmate, Henri van Breda]
  • A. Koos de la Rey
    Koos de la Rey was a prominent Boer general and military leader renowned for his tactical skill and guerrilla warfare during the Anglo-Boer conflicts in South Africa.
  • B. Piet Joubert
    Piet Joubert was a prominent Boer military leader and politician who served as Commandant-General of the South African Republic and played a key role in conflicts against British rule in the late 19th century.
  • C. Quartus de Wet
    Quartus de Wet was the South African judge who presided over the landmark Rivonia Trial that led to the imprisonment of Nelson Mandela and other anti-apartheid leaders.
  • D. Christiaan de Wet
    Christiaan de Wet was a prominent Boer general and guerrilla leader renowned for his daring and highly effective campaigns against British forces during the Second Boer War.
  • E. Andries Hendrik Potgieter
    Andries Hendrik Potgieter was a prominent Voortrekker leader and Boer pioneer who played a key role in establishing early Boer settlements in the interior of southern Africa during the 19th century.
  • 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: Henri van Breda
Triple: [Pollsmoor Prison, notableInmate, Henri van Breda]
Generated description
Henri van Breda is a South African man convicted of murdering his parents and brother with an axe in a high-profile 2015 family massacre in Stellenbosch.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Henri van Breda
Target entity description: Henri van Breda is a South African man convicted of murdering his parents and brother with an axe in a high-profile 2015 family massacre in Stellenbosch.
  • A. Koos de la Rey
    Koos de la Rey was a prominent Boer general and military leader renowned for his tactical skill and guerrilla warfare during the Anglo-Boer conflicts in South Africa.
  • B. Piet Joubert
    Piet Joubert was a prominent Boer military leader and politician who served as Commandant-General of the South African Republic and played a key role in conflicts against British rule in the late 19th century.
  • C. Quartus de Wet
    Quartus de Wet was the South African judge who presided over the landmark Rivonia Trial that led to the imprisonment of Nelson Mandela and other anti-apartheid leaders.
  • D. Christiaan de Wet
    Christiaan de Wet was a prominent Boer general and guerrilla leader renowned for his daring and highly effective campaigns against British forces during the Second Boer War.
  • E. Andries Hendrik Potgieter
    Andries Hendrik Potgieter was a prominent Voortrekker leader and Boer pioneer who played a key role in establishing early Boer settlements in the interior of southern Africa during the 19th century.
  • 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_69a88b0a9f248190bcff941463d8f65a completed March 4, 2026, 7:42 p.m.
NER Named-entity recognition batch_69abc5ef51948190ae828d8ee02feb75 completed March 7, 2026, 6:30 a.m.
NED1 Entity disambiguation (via context triple) batch_69af2b6475948190816531b026c7930c completed March 9, 2026, 8:19 p.m.
NEDg Description generation batch_69af50127dd88190842ef229ad74d6e7 completed March 9, 2026, 10:56 p.m.
NED2 Entity disambiguation (via description) batch_69af508ef3f081909507a1463117366a completed March 9, 2026, 10:58 p.m.
Created at: March 4, 2026, 7:49 p.m.