Triple

T7532954
Position Surface form Disambiguated ID Type / Status
Subject Severn Canal E178071 entity
Predicate namedAfter P63 FINISHED
Object Severn River (Ontario)
Severn River (Ontario) is a waterway in central Ontario that connects Lake Couchiching to Georgian Bay and forms part of the Trent–Severn Waterway.
 E670919 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: Severn River (Ontario) | Statement: [Severn Canal, namedAfter, Severn River (Ontario)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Severn River (Ontario)
Context triple: [Severn Canal, namedAfter, Severn River (Ontario)]
  • A. Scugog River
    Scugog River is a waterway in the Kawartha Lakes region of Ontario, Canada, that connects Lake Scugog to the Kawartha lake system and forms part of the Trent–Severn Waterway.
  • B. Welland River
    The Welland River is a tributary of the Niagara River in Ontario, Canada, flowing through the Niagara Peninsula and intersecting key regional waterways and infrastructure.
  • C. Thames River (Ontario)
    The Thames River in Ontario is a major waterway in southwestern Ontario that flows through cities like London, supporting recreation, wildlife habitats, and local parks along its banks.
  • D. Maitland River (Ontario)
    The Maitland River is a significant waterway in southwestern Ontario, Canada, flowing generally westward and emptying into Lake Huron near the town of Goderich.
  • E. Ausable River (Ontario)
    The Ausable River in Ontario is a river in southwestern Ontario known for its winding course through agricultural lands and conservation areas before emptying into Lake Huron.
  • 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: Severn River (Ontario)
Triple: [Severn Canal, namedAfter, Severn River (Ontario)]
Generated description
Severn River (Ontario) is a waterway in central Ontario that connects Lake Couchiching to Georgian Bay and forms part of the Trent–Severn Waterway.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Severn River (Ontario)
Target entity description: Severn River (Ontario) is a waterway in central Ontario that connects Lake Couchiching to Georgian Bay and forms part of the Trent–Severn Waterway.
  • A. Scugog River
    Scugog River is a waterway in the Kawartha Lakes region of Ontario, Canada, that connects Lake Scugog to the Kawartha lake system and forms part of the Trent–Severn Waterway.
  • B. Welland River
    The Welland River is a tributary of the Niagara River in Ontario, Canada, flowing through the Niagara Peninsula and intersecting key regional waterways and infrastructure.
  • C. Thames River (Ontario)
    The Thames River in Ontario is a major waterway in southwestern Ontario that flows through cities like London, supporting recreation, wildlife habitats, and local parks along its banks.
  • D. Maitland River (Ontario)
    The Maitland River is a significant waterway in southwestern Ontario, Canada, flowing generally westward and emptying into Lake Huron near the town of Goderich.
  • E. Ausable River (Ontario)
    The Ausable River in Ontario is a river in southwestern Ontario known for its winding course through agricultural lands and conservation areas before emptying into Lake Huron.
  • 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_69c69f2acdbc8190b5a8320168c1d0ba completed March 27, 2026, 3:15 p.m.
NER Named-entity recognition batch_69c6f8493964819086aeddfa4872a70b completed March 27, 2026, 9:36 p.m.
NED1 Entity disambiguation (via context triple) batch_69c84f03485c8190829beb95a8be0236 completed March 28, 2026, 9:58 p.m.
NEDg Description generation batch_69c84f9ce82081908813a1185b9b3570 completed March 28, 2026, 10:01 p.m.
NED2 Entity disambiguation (via description) batch_69c8500e64788190b196988290aea7d7 completed March 28, 2026, 10:02 p.m.
Created at: March 27, 2026, 3:47 p.m.