Triple
T19253191
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Illini (Amtrak) |
E481446
|
entity |
| Predicate | usesRailroad |
P522
|
FINISHED |
| Object | CN Centralia Subdivision |
—
|
NE NERFINISHED |
How this triple was built (3 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: CN Centralia Subdivision | Statement: [Illini (Amtrak), usesRailroad, CN Centralia Subdivision]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: CN Centralia Subdivision Context triple: [Illini (Amtrak), usesRailroad, CN Centralia Subdivision]
-
A.
North-Central State
North-Central State was a former administrative region in northern Nigeria that existed in the early years after independence before being reorganized into newer states such as Kaduna State.
-
B.
West Central State
West Central State was a former administrative region in Nigeria that was later renamed Kwara State.
-
C.
Centre Region
The Centre Region is an administrative region of Burkina Faso that includes the national capital, Ouagadougou, and serves as the country’s political and economic hub.
-
D.
Centre Region
The Centre Region is a key administrative area of Cameroon that includes the nation’s political capital, Yaoundé, and serves as an important hub for government and economic activity.
-
E.
Middle Belt
The Middle Belt is a culturally and ethnically diverse central region of Nigeria often seen as a transitional zone between the predominantly Muslim north and largely Christian south.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: CN Centralia Subdivision Target entity description: The CN Centralia Subdivision is a Canadian National Railway line in Illinois that serves as part of the route used by Amtrak passenger trains such as the Illini.
-
A.
North-Central State
North-Central State was a former administrative region in northern Nigeria that existed in the early years after independence before being reorganized into newer states such as Kaduna State.
-
B.
West Central State
West Central State was a former administrative region in Nigeria that was later renamed Kwara State.
-
C.
Centre Region
The Centre Region is an administrative region of Burkina Faso that includes the national capital, Ouagadougou, and serves as the country’s political and economic hub.
-
D.
Centre Region
The Centre Region is a key administrative area of Cameroon that includes the nation’s political capital, Yaoundé, and serves as an important hub for government and economic activity.
-
E.
Middle Belt
The Middle Belt is a culturally and ethnically diverse central region of Nigeria often seen as a transitional zone between the predominantly Muslim north and largely Christian south.
- F. None of above. chosen
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_69d8e8cd9d1081908a181d02b88b59b8 |
completed | April 10, 2026, 12:10 p.m. |
| NER | Named-entity recognition | batch_69e5fb3339648190a87d38ce42aff016 |
completed | April 20, 2026, 10:08 a.m. |
Created at: April 10, 2026, 1:28 p.m.