Triple
T23365702
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Nelson Mandela Bridge |
E593313
|
entity |
| Predicate | crosses |
P416
|
FINISHED |
| Object | Johannesburg railway yard |
—
|
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: Johannesburg railway yard | Statement: [Nelson Mandela Bridge, crosses, Johannesburg railway yard]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Johannesburg railway yard Context triple: [Nelson Mandela Bridge, crosses, Johannesburg railway yard]
-
A.
Pretoria railway station
Pretoria railway station is the main passenger rail hub in Pretoria, South Africa, serving as a key junction for regional and long-distance train services.
-
B.
Johannesburg Park Station
chosen
Johannesburg Park Station is the main railway and intercity transport hub of Johannesburg, serving as a central node for commuter, regional, and long-distance train and bus services.
-
C.
Pretoria Gautrain station
Pretoria Gautrain station is a major rapid-rail transit hub in Pretoria, South Africa, serving as a key stop on the Gautrain network linking the city with Johannesburg and surrounding areas.
-
D.
Cape Town railway station
Cape Town railway station is the main central railway hub of Cape Town, serving as a key terminus for commuter and long-distance trains in the city.
-
E.
Kalk Bay train station
Kalk Bay train station is a coastal railway stop on Cape Town’s Southern Line, known for its scenic seaside setting and proximity to the historic fishing village and harbour of Kalk Bay.
- 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_69e25d2593c88190bcdf4a716a94ccb2 |
completed | April 17, 2026, 4:17 p.m. |
| NER | Named-entity recognition | batch_69f1a0ab7fc481908b496ec9b543eddd |
completed | April 29, 2026, 6:09 a.m. |
Created at: April 17, 2026, 5:31 p.m.