Triple

T7421915

Position	Surface form	Disambiguated ID	Type / Status
Subject	Toronto District School Board	`E171269`	entity
Predicate	formedByMergerOf	`P77`	FINISHED
Object	North York Board of Education North York Board of Education was the former public school authority that administered elementary and secondary schools in the former city of North York, Ontario, prior to its amalgamation into the Toronto District School Board.	`E171269`	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: North York Board of Education | Statement: [Toronto District School Board, formedByMergerOf, North York Board of Education]

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: North York Board of Education
Context triple: [Toronto District School Board, formedByMergerOf, North York Board of Education]

A. Toronto District School Board
The Toronto District School Board is the largest public school board in Canada, responsible for operating and overseeing a wide network of elementary and secondary schools in the city of Toronto.
B. Halton District School Board
Halton District School Board is a public school board in Ontario, Canada, responsible for administering elementary and secondary education in the Halton region, including communities such as Milton.
C. York Region District School Board
The York Region District School Board is a large public school board in Ontario, Canada, responsible for administering elementary and secondary education across York Region.
D. Forest Hill Collegiate Institute
Forest Hill Collegiate Institute is a Toronto public high school known for its strong academic reputation and notable alumni, including television producer and comedian Lorne Michaels.
E. Lester B. Pearson School Board
The Lester B. Pearson School Board is an English-language public school board serving the western part of the Island of Montreal and surrounding areas in Quebec, 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: North York Board of Education
Triple: [Toronto District School Board, formedByMergerOf, North York Board of Education]

Generated description

North York Board of Education was the former public school authority that administered elementary and secondary schools in the former city of North York, Ontario, prior to its amalgamation into the Toronto District School Board.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: North York Board of Education
Target entity description: North York Board of Education was the former public school authority that administered elementary and secondary schools in the former city of North York, Ontario, prior to its amalgamation into the Toronto District School Board.

A. Toronto District School Board chosen
The Toronto District School Board is the largest public school board in Canada, responsible for operating and overseeing a wide network of elementary and secondary schools in the city of Toronto.
B. Halton District School Board
Halton District School Board is a public school board in Ontario, Canada, responsible for administering elementary and secondary education in the Halton region, including communities such as Milton.
C. York Region District School Board
The York Region District School Board is a large public school board in Ontario, Canada, responsible for administering elementary and secondary education across York Region.
D. Forest Hill Collegiate Institute
Forest Hill Collegiate Institute is a Toronto public high school known for its strong academic reputation and notable alumni, including television producer and comedian Lorne Michaels.
E. Lester B. Pearson School Board
The Lester B. Pearson School Board is an English-language public school board serving the western part of the Island of Montreal and surrounding areas in Quebec, Canada.
F. None of above.

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_69c68a625d048190af70eb8b63bec5a0`	completed	March 27, 2026, 1:47 p.m.
NER	Named-entity recognition	`batch_69c6f2ed29ec8190804564185fe20797`	completed	March 27, 2026, 9:13 p.m.
NED1	Entity disambiguation (via context triple)	`batch_69c8344541308190af8d90633cd92645`	completed	March 28, 2026, 8:04 p.m.
NEDg	Description generation	`batch_69c835904be081908fa9317eb5568d82`	completed	March 28, 2026, 8:09 p.m.
NED2	Entity disambiguation (via description)	`batch_69c83621b32c8190bd4b289b5f9f1764`	completed	March 28, 2026, 8:12 p.m.

Created at: March 27, 2026, 3:11 p.m.