Triple
T1400271
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Canadian National Railway |
E30762
|
entity |
| Predicate | hasSubsidiary |
P254
|
FINISHED |
| Object |
Grand Trunk Corporation
Grand Trunk Corporation is a U.S.-based holding company that oversees Canadian National Railway’s rail operations and assets in the United States.
|
E168254
|
NE FINISHED |
How this triple was built (4 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: Grand Trunk Corporation | Statement: [Canadian National Railway, hasSubsidiary, Grand Trunk Corporation]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Grand Trunk Corporation Context triple: [Canadian National Railway, hasSubsidiary, Grand Trunk Corporation]
-
A.
Grand Trunk Pacific Railway
The Grand Trunk Pacific Railway was an early 20th-century Canadian transcontinental railway that played a key role in opening Western Canada to settlement and trade before its assets were absorbed into the national rail system.
-
B.
Grand Trunk Railway
The Grand Trunk Railway was a major 19th- and early 20th-century Canadian railway system that played a key role in linking central Canada with the Atlantic coast and the United States before being absorbed into the Canadian National Railway.
-
C.
Canadian National Railway
Canadian National Railway is a major Canadian freight railway company that operates an extensive rail network across Canada and into the United States.
-
D.
Canadian Northern Railway
The Canadian Northern Railway was an early 20th-century Canadian transcontinental railway whose network later became a core component of the Canadian National Railway system.
-
E.
Canada Lands Company
Canada Lands Company is a federal Crown corporation in Canada responsible for managing, redeveloping, and optimizing the value of strategic real estate and attractions owned by the Government of Canada.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Grand Trunk Corporation Triple: [Canadian National Railway, hasSubsidiary, Grand Trunk Corporation]
Generated description
Grand Trunk Corporation is a U.S.-based holding company that oversees Canadian National Railway’s rail operations and assets in the United States.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Grand Trunk Corporation Target entity description: Grand Trunk Corporation is a U.S.-based holding company that oversees Canadian National Railway’s rail operations and assets in the United States.
-
A.
Grand Trunk Pacific Railway
The Grand Trunk Pacific Railway was an early 20th-century Canadian transcontinental railway that played a key role in opening Western Canada to settlement and trade before its assets were absorbed into the national rail system.
-
B.
Grand Trunk Railway
The Grand Trunk Railway was a major 19th- and early 20th-century Canadian railway system that played a key role in linking central Canada with the Atlantic coast and the United States before being absorbed into the Canadian National Railway.
-
C.
Canadian National Railway
Canadian National Railway is a major Canadian freight railway company that operates an extensive rail network across Canada and into the United States.
-
D.
Canadian Northern Railway
The Canadian Northern Railway was an early 20th-century Canadian transcontinental railway whose network later became a core component of the Canadian National Railway system.
-
E.
Canada Lands Company
Canada Lands Company is a federal Crown corporation in Canada responsible for managing, redeveloping, and optimizing the value of strategic real estate and attractions owned by the Government of Canada.
- F. None of above. chosen
Provenance (5 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_69a498fd4e408190bd73eca30ea9754c |
completed | March 1, 2026, 7:52 p.m. |
| NER | Named-entity recognition | batch_69a4c39c4c148190997150996ca26a99 |
completed | March 1, 2026, 10:54 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ad159920d48190ace6bc4d37af75eb |
completed | March 8, 2026, 6:22 a.m. |
| NEDg | Description generation | batch_69ad165a88388190b43067a5a8c625bf |
completed | March 8, 2026, 6:25 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69ad16be44f88190ab4ea4c9638bd141 |
completed | March 8, 2026, 6:27 a.m. |
Created at: March 1, 2026, 7:59 p.m.