Triple
T14017048
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Johannesburg drainage system |
E337230
|
entity |
| Predicate | instanceOf |
P0
|
FINISHED |
| Object | urban drainage system |
C27395
|
CONCEPT FINISHED |
How this triple was built (1 step)
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.
CD
Concept disambiguation
gpt-5-mini-2025-08-07
Target class: urban drainage system Context triple: [Johannesburg drainage system, instanceOf, urban drainage system]
-
A.
urban watercourse
An urban watercourse is a natural or engineered channel of flowing water that runs through a city or town, shaped and managed by surrounding urban infrastructure and land use.
-
B.
water infrastructure
chosen
Water infrastructure encompasses the systems, facilities, and networks designed to source, treat, store, distribute, and manage water and wastewater for human, industrial, and environmental needs.
-
C.
water supply system
A water supply system is an interconnected network of sources, treatment facilities, storage structures, and distribution pipelines designed to deliver safe and reliable water to end users.
-
D.
drainage channel
A drainage channel is a constructed or natural linear feature designed to collect and convey excess surface or subsurface water away from an area to prevent flooding, erosion, or waterlogging.
-
E.
sewer utility
A sewer utility is an organization or system responsible for collecting, transporting, treating, and safely disposing of wastewater and sewage from homes, businesses, and industries.
- F. None of above.
Provenance (1 batch)
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_69d81c6543a48190bd5ba93d7419e797 |
completed | April 9, 2026, 9:38 p.m. |
Created at: April 9, 2026, 10:19 p.m.