Triple
T21037229
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Chapleau |
E518221
|
entity |
| Predicate | servedByRailway |
P848
|
FINISHED |
| Object | Algoma Central Railway |
—
|
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: Algoma Central Railway | Statement: [Chapleau, servedByRailway, Algoma Central Railway]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Algoma Central Railway Context triple: [Chapleau, servedByRailway, Algoma Central Railway]
-
A.
Algoma Central Railway
chosen
Algoma Central Railway is a Canadian regional railway in Northern Ontario known for its freight operations and scenic passenger services through the wilderness north of Sault Ste. Marie.
-
B.
Ontario Northland Railway
Ontario Northland Railway is a regional rail operator in northeastern Ontario that provides freight and passenger services connecting remote communities with larger urban centers.
-
C.
Hudson Bay Railway
The Hudson Bay Railway is a regional rail line in northern Manitoba, Canada, primarily serving remote communities and resource industries and providing a key transportation link to the Port of Churchill on Hudson Bay.
-
D.
Toronto Terminals Railway
Toronto Terminals Railway is a railway company responsible for managing and operating Toronto’s Union Station rail corridor and related terminal infrastructure.
-
E.
Brockville and Ottawa Railway
The Brockville and Ottawa Railway was a 19th-century Canadian railway company that connected the St. Lawrence River at Brockville with the Ottawa Valley, supporting regional trade and transportation.
- 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_69e0b503275c8190afd9a163f997c709 |
completed | April 16, 2026, 10:08 a.m. |
| NER | Named-entity recognition | batch_69e6fcecf2508190a7647abb3c59debb |
completed | April 21, 2026, 4:28 a.m. |
Created at: April 16, 2026, 2:02 p.m.