Triple
T6973561
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Metrorail Gauteng commuter rail |
E161655
|
entity |
| Predicate | regionServed |
P82
|
FINISHED |
| Object | Witwatersrand |
E31839
|
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: Witwatersrand | Statement: [Metrorail Gauteng commuter rail, regionServed, Witwatersrand]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Witwatersrand Context triple: [Metrorail Gauteng commuter rail, regionServed, Witwatersrand]
-
A.
Witwatersrand
chosen
Witwatersrand is a mineral-rich escarpment in South Africa, historically famous for its vast gold deposits and for giving its name to the country's currency and the University of the Witwatersrand.
-
B.
Vaal Triangle
The Vaal Triangle is a major industrial and urban region in South Africa, centered around the Vaal River and known for its heavy manufacturing and petrochemical industries.
-
C.
Minette iron-ore basin
The Minette iron-ore basin is a historically important iron ore mining region in Lorraine and neighboring areas that underpinned much of the steel industry in Luxembourg and northeastern France.
-
D.
Griqualand West
Griqualand West was a 19th-century British colonial territory in southern Africa, centered on the diamond-rich area around Kimberley.
-
E.
Rustenburg
Rustenburg is a city in South Africa’s North West Province known for its mining industry and as one of the venues for the 2010 FIFA World Cup.
- 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_69c68854a0d88190bc0bf82263f1afce |
completed | March 27, 2026, 1:38 p.m. |
| NER | Named-entity recognition | batch_69c6db3aad108190b19df2d21f5ce168 |
completed | March 27, 2026, 7:32 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c761a6bbdc81908c96871f151db279 |
completed | March 28, 2026, 5:05 a.m. |
Created at: March 27, 2026, 2:30 p.m.