Triple
T9686587
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Tanzania Railways Corporation |
E234423
|
entity |
| Predicate | regionServed |
P82
|
FINISHED |
| Object | mainland Tanzania |
E175082
|
NE FINISHED |
How this triple was built (2 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: mainland Tanzania | Statement: [Tanzania Railways Corporation, regionServed, mainland Tanzania]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: mainland Tanzania Context triple: [Tanzania Railways Corporation, regionServed, mainland Tanzania]
-
A.
mainland Tanzania
chosen
Mainland Tanzania is the continental portion of the United Republic of Tanzania, comprising its large landmass on the African mainland excluding the islands of Zanzibar.
-
B.
southern Tanzania
Southern Tanzania is a sparsely populated, wildlife-rich region of the country known for its vast savannahs, major national parks, and relatively undeveloped safari tourism compared to the north.
-
C.
northern Tanzania
Northern Tanzania is a region renowned for its spectacular wildlife and landscapes, including famous safari destinations such as the Serengeti, Ngorongoro Crater, and Mount Kilimanjaro.
-
D.
Western Zone of Tanzania
The Western Zone of Tanzania is an administrative area in western Tanzania that includes regions such as Kigoma along the shores of Lake Tanganyika.
-
E.
Tanzania
Tanzania is an East African nation known for its vast wilderness areas, including the Serengeti National Park and Mount Kilimanjaro, as well as its rich cultural diversity.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69ca84ca73208190957a900c8543bdcc |
completed | March 30, 2026, 2:12 p.m. |
| NER | Named-entity recognition | batch_69cd9cd2dab481908e0d3fed28de9d40 |
completed | April 1, 2026, 10:31 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69d1910b7c148190b9061b1ce0520e8b |
completed | April 4, 2026, 10:30 p.m. |
Created at: March 30, 2026, 8:17 p.m.