Triple

T3224800
Position Surface form Disambiguated ID Type / Status
Subject Jukskei River E67598 entity
Predicate partOf P40 FINISHED
Object Johannesburg drainage system
The Johannesburg drainage system is the network of rivers, streams, and engineered channels that collects and conveys stormwater and wastewater across the city of Johannesburg.
 E337230 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: Johannesburg drainage system | Statement: [Jukskei River, partOf, Johannesburg drainage system]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Johannesburg drainage system
Context triple: [Jukskei River, partOf, Johannesburg drainage system]
  • A. Bloemfontein waterworks
    Bloemfontein waterworks was a strategically vital water supply installation for the city of Bloemfontein during the Second Boer War.
  • B. Vaal River industrial corridor
    The Vaal River industrial corridor is a major South African manufacturing and steel-producing belt stretching along the Vaal River, encompassing towns such as Vanderbijlpark.
  • C. Nelspruit
    Nelspruit is a city in northeastern South Africa, now known as Mbombela, noted as a regional hub near Kruger National Park and for hosting matches during the 2010 FIFA World Cup.
  • D. Vaal River waterfront
    The Vaal River waterfront is a popular leisure and tourism area along the Vaal River in Vanderbijlpark, known for its restaurants, water sports, and scenic riverfront attractions.
  • E. Hartbeespoort Dam
    Hartbeespoort Dam is a large, popular recreational and irrigation reservoir in South Africa’s North West Province, known for its scenic setting and proximity to Pretoria and Johannesburg.
  • 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: Johannesburg drainage system
Triple: [Jukskei River, partOf, Johannesburg drainage system]
Generated description
The Johannesburg drainage system is the network of rivers, streams, and engineered channels that collects and conveys stormwater and wastewater across the city of Johannesburg.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Johannesburg drainage system
Target entity description: The Johannesburg drainage system is the network of rivers, streams, and engineered channels that collects and conveys stormwater and wastewater across the city of Johannesburg.
  • A. Bloemfontein waterworks
    Bloemfontein waterworks was a strategically vital water supply installation for the city of Bloemfontein during the Second Boer War.
  • B. Vaal River industrial corridor
    The Vaal River industrial corridor is a major South African manufacturing and steel-producing belt stretching along the Vaal River, encompassing towns such as Vanderbijlpark.
  • C. Nelspruit
    Nelspruit is a city in northeastern South Africa, now known as Mbombela, noted as a regional hub near Kruger National Park and for hosting matches during the 2010 FIFA World Cup.
  • D. Vaal River waterfront
    The Vaal River waterfront is a popular leisure and tourism area along the Vaal River in Vanderbijlpark, known for its restaurants, water sports, and scenic riverfront attractions.
  • E. Hartbeespoort Dam
    Hartbeespoort Dam is a large, popular recreational and irrigation reservoir in South Africa’s North West Province, known for its scenic setting and proximity to Pretoria and Johannesburg.
  • 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_69ad858c61888190a31196310d9b30b5 completed March 8, 2026, 2:19 p.m.
NER Named-entity recognition batch_69adae1c51a48190b4a395650528b5d8 completed March 8, 2026, 5:13 p.m.
NED1 Entity disambiguation (via context triple) batch_69b2625eaa708190b23ca6e575d664a2 completed March 12, 2026, 6:51 a.m.
NEDg Description generation batch_69b264e25bd48190978a289565854297 completed March 12, 2026, 7:01 a.m.
NED2 Entity disambiguation (via description) batch_69b265cd3fcc8190bc56bbf2de229386 completed March 12, 2026, 7:05 a.m.
Created at: March 8, 2026, 3:08 p.m.