Triple
T13445733
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Voi |
E320476
|
entity |
| Predicate | traversedBy |
P225
|
FINISHED |
| Object | Mombasa–Nairobi railway line |
E320475
|
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: Mombasa–Nairobi railway line | Statement: [Voi, traversedBy, Mombasa–Nairobi railway line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Mombasa–Nairobi railway line Context triple: [Voi, traversedBy, Mombasa–Nairobi railway line]
-
A.
Mombasa–Nairobi railway
chosen
The Mombasa–Nairobi railway is a major rail line in Kenya linking the coastal city of Mombasa with the capital Nairobi, historically significant for its role in colonial-era transport and regional development.
-
B.
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.
-
C.
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.
-
D.
Nairobi commuter rail network
The Nairobi commuter rail network is a suburban passenger rail system serving Nairobi and its surrounding metropolitan areas, aimed at easing urban congestion and improving daily transit for commuters.
-
E.
Livingstone–Lusaka–Kabwe–Ndola line
The Livingstone–Lusaka–Kabwe–Ndola line is a principal north–south railway route in Zambia that links major urban and industrial centers from the southern border at Livingstone through the capital Lusaka to the Copperbelt region.
- 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_69d80761e6cc8190a90c844589998ecc |
completed | April 9, 2026, 8:09 p.m. |
| NER | Named-entity recognition | batch_69dbaef5f610819092cad33ef72075ff |
completed | April 12, 2026, 2:40 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f7462340548190b156a8213f5e2556 |
completed | May 3, 2026, 12:57 p.m. |
Created at: April 9, 2026, 9:40 p.m.