Triple
T19672565
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Central Line (Tanzania) |
E472369
|
entity |
| Predicate | operator |
P179
|
FINISHED |
| Object | Tanzania Railways Corporation |
—
|
NE NERFINISHED |
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: Tanzania Railways Corporation | Statement: [Central Line (Tanzania), operator, Tanzania Railways Corporation]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Tanzania Railways Corporation Context triple: [Central Line (Tanzania), operator, Tanzania Railways Corporation]
-
A.
Tanzania Railways Corporation
chosen
Tanzania Railways Corporation is the state-owned company responsible for operating and managing much of Tanzania’s railway network for passenger and freight transport.
-
B.
Kenya Railways
Kenya Railways is the state-owned corporation responsible for operating and managing Kenya’s national railway network for passenger and freight transport.
-
C.
Uganda Railways Corporation
Uganda Railways Corporation is the state-owned company responsible for operating and managing Uganda’s railway transport network.
-
D.
Tanzanian railway network
The Tanzanian railway network is the national system of rail lines that connects major cities, ports, and inland regions across Tanzania for passenger and freight transport.
-
E.
Tanzania National Roads Agency
The Tanzania National Roads Agency is a government body responsible for the development, maintenance, and management of the national road network in Tanzania.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (2 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_69d8e514f2e08190ba70a4449519d218 |
completed | April 10, 2026, 11:55 a.m. |
| NER | Named-entity recognition | batch_69e6416d61008190af531c6d346d7da1 |
completed | April 20, 2026, 3:08 p.m. |
Created at: April 10, 2026, 1:45 p.m.