Triple
T11258414
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Gautrain |
E266498
|
entity |
| Predicate | regionServed |
P82
|
FINISHED |
| Object | Gauteng urban corridor |
E278558
|
NE FINISHED |
How this triple was built (2 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: Gauteng urban corridor | Statement: [Gautrain, regionServed, Gauteng urban corridor]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Gauteng urban corridor Context triple: [Gautrain, regionServed, Gauteng urban corridor]
-
A.
Pretoria–Witwatersrand–Vereeniging conurbation
chosen
The Pretoria–Witwatersrand–Vereeniging conurbation is South Africa’s largest urban agglomeration, encompassing much of the country’s economic and population core in the Gauteng region.
-
B.
Central Rand
Central Rand is a major section of South Africa’s Witwatersrand region, historically significant for its rich gold-bearing reefs and mining activity.
-
C.
Ekurhuleni
Ekurhuleni is a large metropolitan municipality in South Africa’s Gauteng province, known for its extensive industrial base and major transport hubs including OR Tambo International Airport.
-
D.
Durban–Johannesburg corridor
The Durban–Johannesburg corridor is a major South African transport and economic artery linking the coastal port city of Durban with the inland metropolis of Johannesburg.
-
E.
Greater Pretoria region
The Greater Pretoria region is a metropolitan area in northern Gauteng, South Africa, centered on the city of Pretoria and its surrounding urban and suburban communities.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69d6aac7953c8190b82caf9d7640fdf9 |
completed | April 8, 2026, 7:21 p.m. |
| NER | Named-entity recognition | batch_69d7e936cb048190b4d6fb2851ef8932 |
completed | April 9, 2026, 6 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69e5b7b051988190abec04740df75c89 |
completed | April 20, 2026, 5:20 a.m. |
Created at: April 8, 2026, 9:31 p.m.