Triple

T7379886
Position Surface form Disambiguated ID Type / Status
Subject Murray Canal E170218 entity
Predicate hasLock P2431 FINISHED
Object 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.
 E665351 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: Lock 1 of the Trent–Severn Waterway | Statement: [Murray Canal, hasLock, Lock 1 of the Trent–Severn Waterway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Lock 1 of the Trent–Severn Waterway
Context triple: [Murray Canal, hasLock, Lock 1 of the Trent–Severn Waterway]
  • 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. Merrickville Locks
    Merrickville Locks are a historic set of canal locks in Merrickville, Ontario, that form part of the UNESCO-listed Rideau Canal waterway.
  • E. Bobcaygeon Lock
    Bobcaygeon Lock is a historic canal lock in Bobcaygeon, Ontario, that facilitates boat navigation and water level control along Canada’s Trent–Severn Waterway.
  • 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: Lock 1 of the Trent–Severn Waterway
Triple: [Murray Canal, hasLock, Lock 1 of the Trent–Severn Waterway]
Generated description
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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Lock 1 of the Trent–Severn Waterway
Target entity description: 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.
  • 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. Merrickville Locks
    Merrickville Locks are a historic set of canal locks in Merrickville, Ontario, that form part of the UNESCO-listed Rideau Canal waterway.
  • E. Bobcaygeon Lock
    Bobcaygeon Lock is a historic canal lock in Bobcaygeon, Ontario, that facilitates boat navigation and water level control along Canada’s Trent–Severn Waterway.
  • 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_69c68a5d0ed08190b6d361e68f813330 completed March 27, 2026, 1:47 p.m.
NER Named-entity recognition batch_69c6f1c61484819087874d4e7f9fd791 completed March 27, 2026, 9:08 p.m.
NED1 Entity disambiguation (via context triple) batch_69c8276ec3b88190b720354787f7a735 completed March 28, 2026, 7:09 p.m.
NEDg Description generation batch_69c828c8b0588190a5a99380dc25d837 completed March 28, 2026, 7:15 p.m.
NED2 Entity disambiguation (via description) batch_69c8296962b48190b9f5cc4a66b93b91 completed March 28, 2026, 7:18 p.m.
Created at: March 27, 2026, 3:08 p.m.