Triple
T1411657
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Lusaka |
E31817
|
entity |
| Predicate | railwayConnection |
P848
|
FINISHED |
| Object |
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.
|
E161693
|
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: Tanzania–Zambia Railway (TAZARA) | Statement: [Lusaka, railwayConnection, Tanzania–Zambia Railway (TAZARA)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Tanzania–Zambia Railway (TAZARA) Context triple: [Lusaka, railwayConnection, Tanzania–Zambia Railway (TAZARA)]
-
A.
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.
-
B.
Umbwe Route
Umbwe Route is a steep, short, and less-traveled ascent path on Mount Kilimanjaro known for its direct approach and challenging terrain.
-
C.
Cairo–Aswan railway line
The Cairo–Aswan railway line is a major Egyptian rail corridor running along the Nile Valley, connecting the capital Cairo with the southern city of Aswan and serving key urban centers in between.
-
D.
Tabora Region
Tabora Region is an inland administrative region in western Tanzania known historically as a key hub for trade and rail transport.
-
E.
Northwestern Zambia
Northwestern Zambia is a sparsely populated, rural region of Zambia known for its upland plateaus, extensive forests, and role as a headwaters area for major southern African rivers.
- 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: Tanzania–Zambia Railway (TAZARA) Triple: [Lusaka, railwayConnection, Tanzania–Zambia Railway (TAZARA)]
Generated description
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.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Tanzania–Zambia Railway (TAZARA) Target entity description: 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.
-
A.
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.
-
B.
Umbwe Route
Umbwe Route is a steep, short, and less-traveled ascent path on Mount Kilimanjaro known for its direct approach and challenging terrain.
-
C.
Cairo–Aswan railway line
The Cairo–Aswan railway line is a major Egyptian rail corridor running along the Nile Valley, connecting the capital Cairo with the southern city of Aswan and serving key urban centers in between.
-
D.
Tabora Region
Tabora Region is an inland administrative region in western Tanzania known historically as a key hub for trade and rail transport.
-
E.
Northwestern Zambia
Northwestern Zambia is a sparsely populated, rural region of Zambia known for its upland plateaus, extensive forests, and role as a headwaters area for major southern African rivers.
- 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_69a49919a994819086528951bc224775 |
completed | March 1, 2026, 7:52 p.m. |
| NER | Named-entity recognition | batch_69a4c3e1da988190bc7c187e193539b6 |
completed | March 1, 2026, 10:55 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ace57be14881908d469d2b5333d6d5 |
completed | March 8, 2026, 2:57 a.m. |
| NEDg | Description generation | batch_69ace61c6f348190bba7717b1bd7f24a |
completed | March 8, 2026, 2:59 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69ace6eeb99081908ac23a6c71faeae6 |
completed | March 8, 2026, 3:03 a.m. |
Created at: March 1, 2026, 7:59 p.m.