Triple
T13543340
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Midrand station |
E323446
|
entity |
| Predicate | partOf |
P40
|
FINISHED |
| Object | Gautrain rapid rail system |
E266498
|
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: Gautrain rapid rail system | Statement: [Midrand station, partOf, Gautrain rapid rail system]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Gautrain rapid rail system Context triple: [Midrand station, partOf, Gautrain rapid rail system]
-
A.
Gautrain
chosen
Gautrain is a high-speed commuter rail system in Gauteng, South Africa, linking major urban centers and key locations such as airports and business districts.
-
B.
Nairobi commuter rail network
The Nairobi commuter rail network is a suburban passenger rail system serving Nairobi and its surrounding metropolitan areas, aimed at easing urban congestion and improving daily transit for commuters.
-
C.
Durban People Mover bus system
The Durban People Mover bus system is a modern, city-operated public transport service in Durban, South Africa, designed to provide safe, reliable, and convenient travel for residents and tourists across key urban and beachfront areas.
-
D.
Metro Busway
Metro Busway is Los Angeles County’s network of high-capacity, bus rapid transit corridors designed to provide faster, more reliable service than regular local bus lines.
-
E.
Rea Vaya bus rapid transit
Rea Vaya bus rapid transit is a bus rapid transit system in Johannesburg, South Africa, designed to provide fast, reliable public transport along dedicated lanes connecting major areas including Soweto and the city center.
- 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_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_69f75da094288190aff108b006c3da1f |
completed | May 3, 2026, 2:37 p.m. |
Created at: April 9, 2026, 9:45 p.m.