Triple

T10761283
Position Surface form Disambiguated ID Type / Status
Subject Cape to Cairo Railway project E253831 entity
Predicate includesSection P1393 FINISHED
Object 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.
E884631 NE FINISHED

How this triple was built (4 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 Town–Bulawayo railway | Statement: [Cape to Cairo Railway project, includesSection, Cape Town–Bulawayo railway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Cape Town–Bulawayo railway
Context triple: [Cape to Cairo Railway project, includesSection, Cape Town–Bulawayo railway]
  • A. Johannesburg–Swaziland line
    The Johannesburg–Swaziland line is a railway route in southern Africa that connects Johannesburg in South Africa with Eswatini (formerly Swaziland), serving as an important corridor for regional transport and trade.
  • B. Johannesburg–Richards Bay line
    The Johannesburg–Richards Bay line is a major South African heavy-haul railway corridor that links the inland economic hub around Johannesburg with the deep-water port of Richards Bay, primarily for bulk freight such as coal.
  • C. Savanna railway
    The Savanna railway is a historic Colombian rail line that serves the Bogotá savanna region, including the town of Zipaquirá, and is now best known for its tourist and heritage train services.
  • D. Livingstone–Lusaka–Kabwe–Ndola line
    The Livingstone–Lusaka–Kabwe–Ndola line is a principal north–south railway route in Zambia that links major urban and industrial centers from the southern border at Livingstone through the capital Lusaka to the Copperbelt region.
  • E. Southern African rail network
    The Southern African rail network is a regional system of interconnected railway lines linking multiple countries in Southern Africa to support trade, passenger transport, and economic integration.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Cape Town–Bulawayo railway
Triple: [Cape to Cairo Railway project, includesSection, Cape Town–Bulawayo railway]
Generated description
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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Cape Town–Bulawayo railway
Target entity description: 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.
  • A. Johannesburg–Swaziland line
    The Johannesburg–Swaziland line is a railway route in southern Africa that connects Johannesburg in South Africa with Eswatini (formerly Swaziland), serving as an important corridor for regional transport and trade.
  • B. Johannesburg–Richards Bay line
    The Johannesburg–Richards Bay line is a major South African heavy-haul railway corridor that links the inland economic hub around Johannesburg with the deep-water port of Richards Bay, primarily for bulk freight such as coal.
  • C. Savanna railway
    The Savanna railway is a historic Colombian rail line that serves the Bogotá savanna region, including the town of Zipaquirá, and is now best known for its tourist and heritage train services.
  • D. Livingstone–Lusaka–Kabwe–Ndola line
    The Livingstone–Lusaka–Kabwe–Ndola line is a principal north–south railway route in Zambia that links major urban and industrial centers from the southern border at Livingstone through the capital Lusaka to the Copperbelt region.
  • E. Southern African rail network
    The Southern African rail network is a regional system of interconnected railway lines linking multiple countries in Southern Africa to support trade, passenger transport, and economic integration.
  • F. None of above. chosen

Provenance (5 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_69d6aa5f54f4819082d0bbcb6f8797e6 completed April 8, 2026, 7:19 p.m.
NER Named-entity recognition batch_69d731a230ac8190920439076aaeb91e completed April 9, 2026, 4:57 a.m.
NED1 Entity disambiguation (via context triple) batch_69de2351db9c8190983ac834ea069fb4 completed April 14, 2026, 11:21 a.m.
NEDg Description generation batch_69de271ee56c81908d2f690f31c2d2db completed April 14, 2026, 11:38 a.m.
NED2 Entity disambiguation (via description) batch_69de2dff4a048190823c8b5f1f7ea548 completed April 14, 2026, 12:07 p.m.
Created at: April 8, 2026, 9:16 p.m.