Triple
T19145253
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Makurdi railway station |
E468661
|
entity |
| Predicate | partOf |
P40
|
FINISHED |
| Object | Nigerian railway system |
—
|
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: Nigerian railway system | Statement: [Makurdi railway station, partOf, Nigerian railway system]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Nigerian railway system Context triple: [Makurdi railway station, partOf, Nigerian railway system]
-
A.
Nigerian Railway Corporation main line
The Nigerian Railway Corporation main line is a principal railway route in Nigeria that connects major cities and regions across the country, serving as a key backbone of its rail transport network.
-
B.
Nigerian Railway Corporation
chosen
The Nigerian Railway Corporation is the state-owned enterprise responsible for operating and managing Nigeria’s railway transport services and infrastructure.
-
C.
Transcameroon Railway
The Transcameroon Railway is a major rail line in Cameroon that links the country's central and northern regions, supporting both passenger travel and freight transport across key economic areas.
-
D.
Trans-Gabon Railway
The Trans-Gabon Railway is a major rail line in Gabon that connects the inland mining regions to the Atlantic coast, serving as a key route for transporting minerals and goods across the country.
-
E.
Niger River transport corridor
The Niger River transport corridor is a key inland waterway and trade route in West Africa that facilitates the movement of goods and people along the Niger River and connects inland communities to regional markets.
- 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_69d8dd084ff48190ac0f8c46ee722629 |
completed | April 10, 2026, 11:20 a.m. |
| NER | Named-entity recognition | batch_69e5e978b0b481909a531efa030c5def |
completed | April 20, 2026, 8:53 a.m. |
Created at: April 10, 2026, 12:06 p.m.