Triple

T1565843
Position Surface form Disambiguated ID Type / Status
Subject Tabora Region E33430 entity
Predicate traversedBy P225 FINISHED
Object 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.
E180041 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: Tabora–Mpanda railway | Statement: [Tabora Region, traversedBy, Tabora–Mpanda railway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Tabora–Mpanda railway
Context triple: [Tabora Region, traversedBy, Tabora–Mpanda railway]
  • A. 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.
  • B. 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.
  • 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. Harare–Beitbridge highway
    The Harare–Beitbridge highway is a major arterial road in Zimbabwe that links the capital Harare with the Beitbridge border post to South Africa, serving as a key regional trade and transport corridor.
  • E. Zambia Railways network
    The Zambia Railways network is the national railway system of Zambia, linking major cities, mining regions, and neighboring countries for freight and passenger transport.
  • 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: Tabora–Mpanda railway
Triple: [Tabora Region, traversedBy, Tabora–Mpanda railway]
Generated description
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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Tabora–Mpanda railway
Target entity description: 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.
  • A. 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.
  • B. 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.
  • 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. Harare–Beitbridge highway
    The Harare–Beitbridge highway is a major arterial road in Zimbabwe that links the capital Harare with the Beitbridge border post to South Africa, serving as a key regional trade and transport corridor.
  • E. Zambia Railways network
    The Zambia Railways network is the national railway system of Zambia, linking major cities, mining regions, and neighboring countries for freight and passenger transport.
  • 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_69a885f11b048190935025a035302715 completed March 4, 2026, 7:20 p.m.
NER Named-entity recognition batch_69abb2308bec81909d1660934eff171b completed March 7, 2026, 5:05 a.m.
NED1 Entity disambiguation (via context triple) batch_69ad40217be88190ae17abcf1541ec55 completed March 8, 2026, 9:23 a.m.
NEDg Description generation batch_69ad44074024819087ae57d85cb89654 completed March 8, 2026, 9:40 a.m.
NED2 Entity disambiguation (via description) batch_69ad44a1f068819095752e05a0915063 completed March 8, 2026, 9:42 a.m.
Created at: March 4, 2026, 7:27 p.m.