Triple
T11230850
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Cape to Cairo Road corridor |
E265814
|
entity |
| Predicate | relatedConcept |
P37
|
FINISHED |
| Object | Cape to Cairo Railway |
E253831
|
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: Cape to Cairo Railway | Statement: [Cape to Cairo Road corridor, relatedConcept, Cape to Cairo Railway]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Cape to Cairo Railway Context triple: [Cape to Cairo Road corridor, relatedConcept, Cape to Cairo Railway]
-
A.
Cape to Cairo Railway project
chosen
The Cape to Cairo Railway project was an ambitious but never fully realized British colonial scheme to create a continuous rail link spanning the African continent from South Africa to Egypt.
-
B.
Benguela Railway
Benguela Railway is a major Angolan railway line that historically linked the country’s interior and neighboring regions to the Atlantic port of Lobito, serving as a key route for freight and passenger transport.
-
C.
Cape to Cairo Telegraph line
The Cape to Cairo Telegraph line was a British imperial communications project aiming to connect South Africa to Egypt by telegraph, symbolizing efforts to link the African continent under colonial rule.
-
D.
Cape Town–Bulawayo railway
The Cape Town–Bulawayo railway is a major southern African rail line linking Cape Town in South Africa with Bulawayo in Zimbabwe, historically significant as a key north–south transport corridor.
-
E.
Mombasa–Nairobi railway
The Mombasa–Nairobi railway is a major rail line in Kenya linking the coastal city of Mombasa with the capital Nairobi, historically significant for its role in colonial-era transport and regional development.
- 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_69d6aac656d48190b275efaa7d6074ee |
completed | April 8, 2026, 7:21 p.m. |
| NER | Named-entity recognition | batch_69d7e9026e1c81909456ac946bbba972 |
completed | April 9, 2026, 5:59 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69e4ad49b5cc8190b99cb2cd8de72109 |
completed | April 19, 2026, 10:24 a.m. |
Created at: April 8, 2026, 9:30 p.m.