Triple

T11571362
Position Surface form Disambiguated ID Type / Status
Subject National Railways of Zimbabwe E274393 entity
Predicate precededBy P97 FINISHED
Object Rhodesia Railways
Rhodesia Railways was the state-owned railway operator of the former British colony of Southern Rhodesia (later Rhodesia), providing major rail transport across what is now Zimbabwe and neighboring regions during much of the 20th century.
E274393 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: Rhodesia Railways | Statement: [National Railways of Zimbabwe, precededBy, Rhodesia Railways]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Rhodesia Railways
Context triple: [National Railways of Zimbabwe, precededBy, Rhodesia Railways]
  • A. National Railways of Zimbabwe
    National Railways of Zimbabwe is the state-owned railway company responsible for operating the majority of Zimbabwe’s rail transport infrastructure and services.
  • B. Botswana Railways
    Botswana Railways is the state-owned railway company responsible for operating and managing Botswana’s national rail transport system.
  • C. Bulawayo–Victoria Falls railway
    The Bulawayo–Victoria Falls railway is a key rail line in western Zimbabwe that connects the city of Bulawayo to the Victoria Falls area, serving as an important regional transport and tourism corridor.
  • D. Takargo Rail
    Takargo Rail is a Portuguese freight railway company that operates cargo transport services across the national rail network and into neighboring countries.
  • E. Great Southern Railways
    Great Southern Railways was a major Irish railway company that operated much of the country’s rail network in the early to mid-20th century.
  • 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: Rhodesia Railways
Triple: [National Railways of Zimbabwe, precededBy, Rhodesia Railways]
Generated description
Rhodesia Railways was the state-owned railway operator of the former British colony of Southern Rhodesia (later Rhodesia), providing major rail transport across what is now Zimbabwe and neighboring regions during much of the 20th century.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Rhodesia Railways
Target entity description: Rhodesia Railways was the state-owned railway operator of the former British colony of Southern Rhodesia (later Rhodesia), providing major rail transport across what is now Zimbabwe and neighboring regions during much of the 20th century.
  • A. National Railways of Zimbabwe chosen
    National Railways of Zimbabwe is the state-owned railway company responsible for operating the majority of Zimbabwe’s rail transport infrastructure and services.
  • B. Botswana Railways
    Botswana Railways is the state-owned railway company responsible for operating and managing Botswana’s national rail transport system.
  • C. Bulawayo–Victoria Falls railway
    The Bulawayo–Victoria Falls railway is a key rail line in western Zimbabwe that connects the city of Bulawayo to the Victoria Falls area, serving as an important regional transport and tourism corridor.
  • D. Takargo Rail
    Takargo Rail is a Portuguese freight railway company that operates cargo transport services across the national rail network and into neighboring countries.
  • E. Great Southern Railways
    Great Southern Railways was a major Irish railway company that operated much of the country’s rail network in the early to mid-20th century.
  • F. None of above.

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_69d6aae5ac3c81908d2b0a3a665665b2 completed April 8, 2026, 7:22 p.m.
NER Named-entity recognition batch_69d88dd6913881908becf188c0a7a275 completed April 10, 2026, 5:42 a.m.
NED1 Entity disambiguation (via context triple) batch_69e6e8eface48190a2ed3275191b01ea completed April 21, 2026, 3:03 a.m.
NEDg Description generation batch_69e6ef9631e48190aef47bba9ad611e8 completed April 21, 2026, 3:31 a.m.
NED2 Entity disambiguation (via description) batch_69e6f94ac2d0819098a3024eaab908b5 completed April 21, 2026, 4:12 a.m.
Created at: April 8, 2026, 9:38 p.m.