Triple
T18412713
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Pretoria Gautrain station |
E441801
|
entity |
| Predicate | operator |
P179
|
FINISHED |
| Object | Gautrain Management Agency |
—
|
NE NERFINISHED |
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 Management Agency | Statement: [Pretoria Gautrain station, operator, Gautrain Management Agency]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Gautrain Management Agency Context triple: [Pretoria Gautrain station, operator, Gautrain Management Agency]
-
A.
Gautrain Management Agency
chosen
Gautrain Management Agency is the public entity responsible for overseeing and managing the Gautrain rapid rail system in Gauteng, South Africa.
-
B.
Gautrain
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.
-
C.
GMR Group
GMR Group is a leading Indian infrastructure conglomerate with major interests in airports, energy, transportation, and urban infrastructure development.
-
D.
Abellio
Abellio is a Dutch-based public transport company that operates train and bus services in the United Kingdom and parts of Europe.
-
E.
Egyptian Company for Metro Management and Operation
The Egyptian Company for Metro Management and Operation is the state-owned enterprise responsible for running and maintaining Cairo’s urban metro network.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (2 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_69d8b9eb8a508190a942fd75ebd8b1dc |
completed | April 10, 2026, 8:50 a.m. |
| NER | Named-entity recognition | batch_69e51a259c1c819094e710bb4a7ace75 |
completed | April 19, 2026, 6:08 p.m. |
Created at: April 10, 2026, 10:47 a.m.