Triple
T2435590
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | O. R. Tambo International Airport |
E52952
|
entity |
| Predicate | servesMetropolitanArea |
P82
|
FINISHED |
| Object | Greater Johannesburg |
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: Greater Johannesburg | Statement: [O. R. Tambo International Airport, servesMetropolitanArea, Greater Johannesburg]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Greater Johannesburg Context triple: [O. R. Tambo International Airport, servesMetropolitanArea, Greater Johannesburg]
-
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.
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.
-
C.
City of Johannesburg Metropolitan Municipality
The City of Johannesburg Metropolitan Municipality is the local government authority responsible for administering and providing services to the greater Johannesburg metropolitan area in South Africa.
-
D.
Johannesburg, South Africa
Johannesburg, South Africa is the country’s largest city and economic hub, known for its role in the gold mining industry and as a major urban center in Gauteng province.
-
E.
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.
- 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_69ab4959bcc0819083246f9fb10439e3 |
completed | March 6, 2026, 9:38 p.m. |
| NER | Named-entity recognition | batch_69abc9cd49b48190bff10a5ab7cef483 |
completed | March 7, 2026, 6:46 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69af8376d6dc81909bf1e5caefb304ef |
completed | March 10, 2026, 2:35 a.m. |
Created at: March 6, 2026, 9:43 p.m.