Triple

T4632538
Position Surface form Disambiguated ID Type / Status
Subject North Saskatchewan River E101449 entity
Predicate hasBridge P386 FINISHED
Object Walterdale Bridge (Edmonton)
Walterdale Bridge (Edmonton) is a prominent modern steel arch bridge in downtown Edmonton, Alberta, known for carrying traffic across the North Saskatchewan River and serving as a recognizable city landmark.
E459755 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: Walterdale Bridge (Edmonton) | Statement: [North Saskatchewan River, hasBridge, Walterdale Bridge (Edmonton)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Walterdale Bridge (Edmonton)
Context triple: [North Saskatchewan River, hasBridge, Walterdale Bridge (Edmonton)]
  • A. High Level Bridge (Edmonton)
    The High Level Bridge in Edmonton is a historic multi-use steel truss bridge that carries road traffic, pedestrians, and a heritage streetcar high above the North Saskatchewan River, linking the city’s downtown with the south side.
  • B. Humber Bay Arch Bridge
    The Humber Bay Arch Bridge is a distinctive pedestrian and cyclist bridge in Toronto, Canada, known for its elegant twin-arch design spanning the mouth of the Humber River along the waterfront.
  • C. Lethbridge Viaduct
    The Lethbridge Viaduct, also known as the High Level Bridge, is a historic steel railway trestle in Lethbridge, Alberta, and one of the longest and highest bridges of its kind in the world.
  • D. Pattullo Bridge
    The Pattullo Bridge is a major road bridge in Metro Vancouver, British Columbia, connecting the cities of New Westminster and Surrey across the Fraser River.
  • E. Algonquin Bridge
    Algonquin Bridge is a pedestrian bridge located on the Toronto Islands, providing a scenic crossing between parts of the island park system.
  • 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: Walterdale Bridge (Edmonton)
Triple: [North Saskatchewan River, hasBridge, Walterdale Bridge (Edmonton)]
Generated description
Walterdale Bridge (Edmonton) is a prominent modern steel arch bridge in downtown Edmonton, Alberta, known for carrying traffic across the North Saskatchewan River and serving as a recognizable city landmark.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Walterdale Bridge (Edmonton)
Target entity description: Walterdale Bridge (Edmonton) is a prominent modern steel arch bridge in downtown Edmonton, Alberta, known for carrying traffic across the North Saskatchewan River and serving as a recognizable city landmark.
  • A. High Level Bridge (Edmonton)
    The High Level Bridge in Edmonton is a historic multi-use steel truss bridge that carries road traffic, pedestrians, and a heritage streetcar high above the North Saskatchewan River, linking the city’s downtown with the south side.
  • B. Humber Bay Arch Bridge
    The Humber Bay Arch Bridge is a distinctive pedestrian and cyclist bridge in Toronto, Canada, known for its elegant twin-arch design spanning the mouth of the Humber River along the waterfront.
  • C. Lethbridge Viaduct
    The Lethbridge Viaduct, also known as the High Level Bridge, is a historic steel railway trestle in Lethbridge, Alberta, and one of the longest and highest bridges of its kind in the world.
  • D. Pattullo Bridge
    The Pattullo Bridge is a major road bridge in Metro Vancouver, British Columbia, connecting the cities of New Westminster and Surrey across the Fraser River.
  • E. Algonquin Bridge
    Algonquin Bridge is a pedestrian bridge located on the Toronto Islands, providing a scenic crossing between parts of the island park system.
  • 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_69bd43d2f1c081908cd4b7ec48ecc73d completed March 20, 2026, 12:55 p.m.
NER Named-entity recognition batch_69bd5a342ffc8190a911d0598ed230bb completed March 20, 2026, 2:31 p.m.
NED1 Entity disambiguation (via context triple) batch_69be0368d2748190bc8560ecb16e1997 completed March 21, 2026, 2:33 a.m.
NEDg Description generation batch_69be042adb8c8190b6889c3a5b9c18cc completed March 21, 2026, 2:36 a.m.
NED2 Entity disambiguation (via description) batch_69be048f7d7881908ab19bd37c92b423 completed March 21, 2026, 2:38 a.m.
Created at: March 20, 2026, 1:13 p.m.