Triple

T21469193
Position Surface form Disambiguated ID Type / Status
Subject Tietê-Pinheiros Canal system E529679 entity
Predicate partOf P40 FINISHED
Object São Paulo urban drainage system
The São Paulo urban drainage system is an extensive network of canals, rivers, and infrastructure designed to manage stormwater and reduce flooding across the metropolitan region.
E529679 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: São Paulo urban drainage system | Statement: [Tietê-Pinheiros Canal system, partOf, São Paulo urban drainage system]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: São Paulo urban drainage system
Context triple: [Tietê-Pinheiros Canal system, partOf, São Paulo urban drainage system]
  • A. Tietê-Pinheiros Canal system
    The Tietê-Pinheiros Canal system is an extensive network of engineered waterways in the São Paulo metropolitan area that channels and regulates the flow of the Tietê and Pinheiros rivers for flood control, urban drainage, and water management.
  • B. Curitiba park system
    The Curitiba park system is an extensive network of urban parks and green spaces in Curitiba, Brazil, renowned for its innovative integration of recreation, environmental preservation, and flood control.
  • C. Recife urban hydrological network
    The Recife urban hydrological network is the interconnected system of rivers, canals, and drainage waterways that shapes the city’s water management, flood dynamics, and coastal environment.
  • D. Bogotá water supply system
    The Bogotá water supply system is the integrated network of reservoirs, treatment plants, and distribution infrastructure that provides potable water to Colombia’s capital and its metropolitan area.
  • E. Carioca Aqueduct
    The Carioca Aqueduct, popularly known as the Lapa Arches, is a historic 18th-century aqueduct and iconic Roman-style arcade in Rio de Janeiro that now serves as a landmark bridge for the city’s tram system.
  • 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: São Paulo urban drainage system
Triple: [Tietê-Pinheiros Canal system, partOf, São Paulo urban drainage system]
Generated description
The São Paulo urban drainage system is an extensive network of canals, rivers, and infrastructure designed to manage stormwater and reduce flooding across the metropolitan region.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: São Paulo urban drainage system
Target entity description: The São Paulo urban drainage system is an extensive network of canals, rivers, and infrastructure designed to manage stormwater and reduce flooding across the metropolitan region.
  • A. Tietê-Pinheiros Canal system chosen
    The Tietê-Pinheiros Canal system is an extensive network of engineered waterways in the São Paulo metropolitan area that channels and regulates the flow of the Tietê and Pinheiros rivers for flood control, urban drainage, and water management.
  • B. Curitiba park system
    The Curitiba park system is an extensive network of urban parks and green spaces in Curitiba, Brazil, renowned for its innovative integration of recreation, environmental preservation, and flood control.
  • C. Recife urban hydrological network
    The Recife urban hydrological network is the interconnected system of rivers, canals, and drainage waterways that shapes the city’s water management, flood dynamics, and coastal environment.
  • D. Bogotá water supply system
    The Bogotá water supply system is the integrated network of reservoirs, treatment plants, and distribution infrastructure that provides potable water to Colombia’s capital and its metropolitan area.
  • E. Carioca Aqueduct
    The Carioca Aqueduct, popularly known as the Lapa Arches, is a historic 18th-century aqueduct and iconic Roman-style arcade in Rio de Janeiro that now serves as a landmark bridge for the city’s tram system.
  • F. None of above.

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_69e0c459acb481909bb6ee452a0045c7 completed April 16, 2026, 11:13 a.m.
NER Named-entity recognition batch_69e9e9f58f6c8190a3d2fc8f820a9925 completed April 23, 2026, 9:44 a.m.
NED1 Entity disambiguation (via context triple) batch_6a09cff53c5c8190824b561ed79da378 completed May 17, 2026, 2:25 p.m.
NEDg Description generation batch_6a09d08ffa3c8190b5ab7e4cbf78719f completed May 17, 2026, 2:28 p.m.
NED2 Entity disambiguation (via description) batch_6a09d18c77e481908a353d443d79b7ca completed May 17, 2026, 2:32 p.m.
Created at: April 16, 2026, 6:16 p.m.