Triple

T6975020
Position Surface form Disambiguated ID Type / Status
Subject Zambia Railways network E161694 entity
Predicate mainCorridor P5520 FINISHED
Object 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.
E633698 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: Livingstone–Lusaka–Kabwe–Ndola line | Statement: [Zambia Railways network, mainCorridor, Livingstone–Lusaka–Kabwe–Ndola line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Livingstone–Lusaka–Kabwe–Ndola line
Context triple: [Zambia Railways network, mainCorridor, Livingstone–Lusaka–Kabwe–Ndola line]
  • A. Tabora–Mpanda railway
    The Tabora–Mpanda railway is a regional rail line in western Tanzania that connects the town of Tabora with Mpanda, supporting transport and economic activity across the area.
  • B. Tabora–Kigoma railway
    The Tabora–Kigoma railway is a key western Tanzanian rail line connecting the inland rail hub of Tabora to the port town of Kigoma on Lake Tanganyika, facilitating regional trade and passenger transport.
  • C. Lusaka–Malawi transport corridor
    The Lusaka–Malawi transport corridor is a key regional route linking Zambia’s capital Lusaka with Malawi, facilitating cross-border trade and movement in southeastern Africa.
  • D. Bulawayo–Plumtree–Francistown route
    The Bulawayo–Plumtree–Francistown route is a key regional transport corridor linking southwestern Zimbabwe with northeastern Botswana, facilitating cross-border trade and travel between Bulawayo, Plumtree, and Francistown.
  • E. Tanzania–Zambia Railway (TAZARA)
    The Tanzania–Zambia Railway (TAZARA) is a major bi-national rail line built with Chinese assistance that links landlocked Zambia to the Tanzanian port of Dar es Salaam, serving as a key transport and trade corridor in East and Southern Africa.
  • 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: Livingstone–Lusaka–Kabwe–Ndola line
Triple: [Zambia Railways network, mainCorridor, Livingstone–Lusaka–Kabwe–Ndola line]
Generated description
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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Livingstone–Lusaka–Kabwe–Ndola line
Target entity description: 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.
  • A. Tabora–Mpanda railway
    The Tabora–Mpanda railway is a regional rail line in western Tanzania that connects the town of Tabora with Mpanda, supporting transport and economic activity across the area.
  • B. Tabora–Kigoma railway
    The Tabora–Kigoma railway is a key western Tanzanian rail line connecting the inland rail hub of Tabora to the port town of Kigoma on Lake Tanganyika, facilitating regional trade and passenger transport.
  • C. Lusaka–Malawi transport corridor
    The Lusaka–Malawi transport corridor is a key regional route linking Zambia’s capital Lusaka with Malawi, facilitating cross-border trade and movement in southeastern Africa.
  • D. Bulawayo–Plumtree–Francistown route
    The Bulawayo–Plumtree–Francistown route is a key regional transport corridor linking southwestern Zimbabwe with northeastern Botswana, facilitating cross-border trade and travel between Bulawayo, Plumtree, and Francistown.
  • E. Tanzania–Zambia Railway (TAZARA)
    The Tanzania–Zambia Railway (TAZARA) is a major bi-national rail line built with Chinese assistance that links landlocked Zambia to the Tanzanian port of Dar es Salaam, serving as a key transport and trade corridor in East and Southern Africa.
  • 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_69c68854a0d88190bc0bf82263f1afce completed March 27, 2026, 1:38 p.m.
NER Named-entity recognition batch_69c6db3bda908190a10a91dc8d043ef1 completed March 27, 2026, 7:32 p.m.
NED1 Entity disambiguation (via context triple) batch_69c761a6bbdc81908c96871f151db279 completed March 28, 2026, 5:05 a.m.
NEDg Description generation batch_69c7639074f48190bc095f18fc35c08b completed March 28, 2026, 5:13 a.m.
NED2 Entity disambiguation (via description) batch_69c76435fd2c819099143ea12f21d095 completed March 28, 2026, 5:16 a.m.
Created at: March 27, 2026, 2:31 p.m.