Triple
T6974980
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Tanzania–Zambia Railway |
E161693
|
entity |
| Predicate | hasSignificantStructure |
P58956
|
FINISHED |
| Object |
Makambako–Mbeya escarpment section
The Makambako–Mbeya escarpment section is a challenging mountainous stretch of railway in southwestern Tanzania, notable for its steep gradients, curves, and engineering works along the Tanzania–Zambia Railway.
|
E633694
|
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: Makambako–Mbeya escarpment section | Statement: [Tanzania–Zambia Railway, hasSignificantStructure, Makambako–Mbeya escarpment section]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Makambako–Mbeya escarpment section Context triple: [Tanzania–Zambia Railway, hasSignificantStructure, Makambako–Mbeya escarpment section]
-
A.
Rukwa Valley
Rukwa Valley is a region in southwestern Tanzania known for its fertile lowlands, proximity to Lake Rukwa, and as a traditional homeland of several ethnic groups including the Fipa people.
-
B.
Kyambura Gorge
Kyambura Gorge is a dramatic, forested ravine in southwestern Uganda renowned for its chimpanzee tracking and rich biodiversity.
-
C.
Udzungwa Mountains National Park
Udzungwa Mountains National Park is a biodiverse protected area in Tanzania renowned for its rainforest-cloaked mountains, high levels of endemism, and rich populations of primates and rare plant species.
-
D.
Kigezi Highlands
The Kigezi Highlands are a mountainous region in southwestern Uganda known for their steep terraced hills, cool climate, and rich biodiversity, including habitats for endangered mountain gorillas.
-
E.
Malawi Rift mountains
The Malawi Rift mountains are a highland region in southeastern Africa characterized by rugged terrain and significant biodiversity, including extensive Afromontane forest ecosystems.
- 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: Makambako–Mbeya escarpment section Triple: [Tanzania–Zambia Railway, hasSignificantStructure, Makambako–Mbeya escarpment section]
Generated description
The Makambako–Mbeya escarpment section is a challenging mountainous stretch of railway in southwestern Tanzania, notable for its steep gradients, curves, and engineering works along the Tanzania–Zambia Railway.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Makambako–Mbeya escarpment section Target entity description: The Makambako–Mbeya escarpment section is a challenging mountainous stretch of railway in southwestern Tanzania, notable for its steep gradients, curves, and engineering works along the Tanzania–Zambia Railway.
-
A.
Rukwa Valley
Rukwa Valley is a region in southwestern Tanzania known for its fertile lowlands, proximity to Lake Rukwa, and as a traditional homeland of several ethnic groups including the Fipa people.
-
B.
Kyambura Gorge
Kyambura Gorge is a dramatic, forested ravine in southwestern Uganda renowned for its chimpanzee tracking and rich biodiversity.
-
C.
Udzungwa Mountains National Park
Udzungwa Mountains National Park is a biodiverse protected area in Tanzania renowned for its rainforest-cloaked mountains, high levels of endemism, and rich populations of primates and rare plant species.
-
D.
Kigezi Highlands
The Kigezi Highlands are a mountainous region in southwestern Uganda known for their steep terraced hills, cool climate, and rich biodiversity, including habitats for endangered mountain gorillas.
-
E.
Malawi Rift mountains
The Malawi Rift mountains are a highland region in southeastern Africa characterized by rugged terrain and significant biodiversity, including extensive Afromontane forest ecosystems.
- 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.