Triple
T23143525
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Passenger Rail Agency of South Africa |
E577524
|
entity |
| Predicate | operatesService |
P5884
|
FINISHED |
| Object | Shosholoza Meyl intercity trains |
—
|
NE NERFINISHED |
How this triple was built (3 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: Shosholoza Meyl intercity trains | Statement: [Passenger Rail Agency of South Africa, operatesService, Shosholoza Meyl intercity trains]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Shosholoza Meyl intercity trains Context triple: [Passenger Rail Agency of South Africa, operatesService, Shosholoza Meyl intercity trains]
-
A.
Metrorail Gauteng commuter rail
Metrorail Gauteng commuter rail is a regional passenger rail service in South Africa’s Gauteng province that connects major urban areas and townships, including Soweto, with central business districts.
-
B.
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.
-
C.
South African Metrorail network
The South African Metrorail network is a state-operated urban and suburban passenger rail system serving major metropolitan regions across South Africa.
-
D.
Pesa trains
Pesa trains are modern electric multiple units manufactured by the Polish company Pesa, used as part of the rolling stock on systems such as the Sofia Metro.
-
E.
Udarata Menike express train
The Udarata Menike express train is a famous Sri Lankan passenger service that runs through the scenic hill country between Colombo and Badulla, renowned for its picturesque views and popularity with both locals and tourists.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Shosholoza Meyl intercity trains Target entity description: Shosholoza Meyl intercity trains are South Africa’s long-distance passenger rail services connecting major cities and regions across the country.
-
A.
Metrorail Gauteng commuter rail
Metrorail Gauteng commuter rail is a regional passenger rail service in South Africa’s Gauteng province that connects major urban areas and townships, including Soweto, with central business districts.
-
B.
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.
-
C.
South African Metrorail network
The South African Metrorail network is a state-operated urban and suburban passenger rail system serving major metropolitan regions across South Africa.
-
D.
Pesa trains
Pesa trains are modern electric multiple units manufactured by the Polish company Pesa, used as part of the rolling stock on systems such as the Sofia Metro.
-
E.
Udarata Menike express train
The Udarata Menike express train is a famous Sri Lankan passenger service that runs through the scenic hill country between Colombo and Badulla, renowned for its picturesque views and popularity with both locals and tourists.
- F. None of above. chosen
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_69e245f8e6248190ba3d58e068b4dccb |
completed | April 17, 2026, 2:38 p.m. |
| NER | Named-entity recognition | batch_69f18ecc3710819088ac5d72dad0459a |
completed | April 29, 2026, 4:53 a.m. |
Created at: April 17, 2026, 4 p.m.