Triple

T12000589

Position	Surface form	Disambiguated ID	Type / Status
Subject	Otonabee River	`E285648`	entity
Predicate	hasLock	`P2431`	FINISHED
Object	Trent–Severn Waterway lock The Trent–Severn Waterway lock is a navigational lock that forms part of Ontario’s historic Trent–Severn Waterway canal system, enabling boats to traverse changes in water level between interconnected rivers and lakes.	`E959320`	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: Trent–Severn Waterway lock | Statement: [Otonabee River, hasLock, Trent–Severn Waterway lock]

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

Target entity: Trent–Severn Waterway lock
Context triple: [Otonabee River, hasLock, Trent–Severn Waterway lock]

A. Trent–Severn Waterway Lock 35
Trent–Severn Waterway Lock 35 is one of the numbered canal locks on Canada’s historic Trent–Severn Waterway, facilitating navigation and water level changes along the Trent River.
B. Trent–Severn Waterway Lock 33
Trent–Severn Waterway Lock 33 is one of the navigational locks on Ontario’s historic Trent–Severn Waterway, facilitating boat passage and water level management along the Trent River.
C. Trent–Severn Waterway Lock 34
Trent–Severn Waterway Lock 34 is one of the numbered canal locks on Canada’s historic Trent–Severn Waterway, facilitating navigation and water level changes along the Trent River.
D. Smiths Falls Locks
Smiths Falls Locks are a historic set of canal locks in Smiths Falls, Ontario, that form a key part of the Rideau Canal’s navigation and heritage infrastructure.
E. Lock 1 of the Trent–Severn Waterway
Lock 1 of the Trent–Severn Waterway is the first lock on Ontario’s historic Trent–Severn canal system, situated at the entrance to the Murray Canal and serving as a key control point for vessel navigation between Lake Ontario and the inland waterway network.
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: Trent–Severn Waterway lock
Triple: [Otonabee River, hasLock, Trent–Severn Waterway lock]

Generated description

The Trent–Severn Waterway lock is a navigational lock that forms part of Ontario’s historic Trent–Severn Waterway canal system, enabling boats to traverse changes in water level between interconnected rivers and lakes.

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

Target entity: Trent–Severn Waterway lock
Target entity description: The Trent–Severn Waterway lock is a navigational lock that forms part of Ontario’s historic Trent–Severn Waterway canal system, enabling boats to traverse changes in water level between interconnected rivers and lakes.

A. Trent–Severn Waterway Lock 35
Trent–Severn Waterway Lock 35 is one of the numbered canal locks on Canada’s historic Trent–Severn Waterway, facilitating navigation and water level changes along the Trent River.
B. Trent–Severn Waterway Lock 33
Trent–Severn Waterway Lock 33 is one of the navigational locks on Ontario’s historic Trent–Severn Waterway, facilitating boat passage and water level management along the Trent River.
C. Trent–Severn Waterway Lock 34
Trent–Severn Waterway Lock 34 is one of the numbered canal locks on Canada’s historic Trent–Severn Waterway, facilitating navigation and water level changes along the Trent River.
D. Smiths Falls Locks
Smiths Falls Locks are a historic set of canal locks in Smiths Falls, Ontario, that form a key part of the Rideau Canal’s navigation and heritage infrastructure.
E. Lock 1 of the Trent–Severn Waterway
Lock 1 of the Trent–Severn Waterway is the first lock on Ontario’s historic Trent–Severn canal system, situated at the entrance to the Murray Canal and serving as a key control point for vessel navigation between Lake Ontario and the inland waterway network.
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_69d6ab44a77c8190a652f4b27164e4ef`	completed	April 8, 2026, 7:23 p.m.
NER	Named-entity recognition	`batch_69d903c26d7881909b67a31d04882eb5`	completed	April 10, 2026, 2:05 p.m.
NED1	Entity disambiguation (via context triple)	`batch_69f48ae4733c81909956cc8d6bae343a`	completed	May 1, 2026, 11:13 a.m.
NEDg	Description generation	`batch_69f48df7790c8190a8e79466f032e86d`	completed	May 1, 2026, 11:26 a.m.
NED2	Entity disambiguation (via description)	`batch_69f490dfe4e4819092d7494ba9b807db`	completed	May 1, 2026, 11:39 a.m.

Created at: April 8, 2026, 9:46 p.m.