Triple
T13543363
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Midrand station |
E323446
|
entity |
| Predicate | isOnCorridor |
P1018
|
FINISHED |
| Object |
Johannesburg–Pretoria high‑speed corridor
The Johannesburg–Pretoria high-speed corridor is a major rapid-rail link in South Africa that connects the economic hubs of Johannesburg and Pretoria as part of the Gautrain system.
|
E1053341
|
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–Pretoria high‑speed corridor | Statement: [Midrand station, isOnCorridor, Johannesburg–Pretoria high‑speed corridor]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Johannesburg–Pretoria high‑speed corridor Context triple: [Midrand station, isOnCorridor, Johannesburg–Pretoria high‑speed corridor]
-
A.
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.
-
B.
Johannesburg Ring Road
The Johannesburg Ring Road is a network of freeways encircling Johannesburg, South Africa, that facilitates high-volume traffic flow around the city and connects major national routes.
-
C.
KwaDukuza–Durban corridor
The KwaDukuza–Durban corridor is a rapidly developing coastal economic and transport belt in KwaZulu-Natal, South Africa, linking the city of Durban with the town of KwaDukuza through urban, industrial, and residential growth.
-
D.
Gaborone–Johannesburg route
The Gaborone–Johannesburg route is a major regional transport corridor linking Botswana’s capital Gaborone with South Africa’s economic hub Johannesburg, facilitating significant cross-border trade and travel.
-
E.
Cape to Cairo Road corridor
The Cape to Cairo Road corridor is a proposed trans-African highway route intended to link South Africa’s Cape Town with Egypt’s Cairo, facilitating regional connectivity and trade across the continent.
- 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–Pretoria high‑speed corridor Triple: [Midrand station, isOnCorridor, Johannesburg–Pretoria high‑speed corridor]
Generated description
The Johannesburg–Pretoria high-speed corridor is a major rapid-rail link in South Africa that connects the economic hubs of Johannesburg and Pretoria as part of the Gautrain system.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Johannesburg–Pretoria high‑speed corridor Target entity description: The Johannesburg–Pretoria high-speed corridor is a major rapid-rail link in South Africa that connects the economic hubs of Johannesburg and Pretoria as part of the Gautrain system.
-
A.
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.
-
B.
Johannesburg Ring Road
The Johannesburg Ring Road is a network of freeways encircling Johannesburg, South Africa, that facilitates high-volume traffic flow around the city and connects major national routes.
-
C.
KwaDukuza–Durban corridor
The KwaDukuza–Durban corridor is a rapidly developing coastal economic and transport belt in KwaZulu-Natal, South Africa, linking the city of Durban with the town of KwaDukuza through urban, industrial, and residential growth.
-
D.
Gaborone–Johannesburg route
The Gaborone–Johannesburg route is a major regional transport corridor linking Botswana’s capital Gaborone with South Africa’s economic hub Johannesburg, facilitating significant cross-border trade and travel.
-
E.
Cape to Cairo Road corridor
The Cape to Cairo Road corridor is a proposed trans-African highway route intended to link South Africa’s Cape Town with Egypt’s Cairo, facilitating regional connectivity and trade across the continent.
- 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_69d8076776248190bdf0d4fa1f85a5fc |
completed | April 9, 2026, 8:09 p.m. |
| NER | Named-entity recognition | batch_69dbafda36248190acabde65a88c5471 |
completed | April 12, 2026, 2:44 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f78adaf62c8190855df932eb9830be |
completed | May 3, 2026, 5:50 p.m. |
| NEDg | Description generation | batch_69f78cdf1a74819087b0370060ddfa99 |
completed | May 3, 2026, 5:58 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69f78e00007c81909007a751fd4625c2 |
completed | May 3, 2026, 6:03 p.m. |
Created at: April 9, 2026, 9:45 p.m.