Triple

T515121
Position Surface form Disambiguated ID Type / Status
Subject Maple Leaf Gardens E10688 entity
Predicate currentNameOfArenaPortion P1213 FINISHED
Object Mattamy Athletic Centre
The Mattamy Athletic Centre is a multi-purpose sports and recreation facility in Toronto that occupies the former Maple Leaf Gardens, serving primarily as the home arena for Toronto Metropolitan University athletics.
E64536 NE FINISHED

How this triple was built (5 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: Mattamy Athletic Centre | Statement: [Maple Leaf Gardens, currentNameOfArenaPortion, Mattamy Athletic Centre]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Mattamy Athletic Centre
Context triple: [Maple Leaf Gardens, currentNameOfArenaPortion, Mattamy Athletic Centre]
  • A. Scotiabank Arena
    Scotiabank Arena is a major multi-purpose sports and entertainment venue in downtown Toronto, serving as the home arena for the NHL’s Toronto Maple Leafs and the NBA’s Toronto Raptors.
  • B. Thompson–Boling Arena
    Thompson–Boling Arena is a large multi-purpose indoor sports and entertainment venue located on the University of Tennessee campus in Knoxville.
  • C. Montreal Forum
    The Montreal Forum was a historic indoor arena in Montreal, Quebec, best known as the longtime home of the NHL’s Montreal Canadiens and a legendary venue in professional hockey history.
  • D. McDougald–McLendon Arena
    McDougald–McLendon Arena is an indoor sports and events venue that serves as the primary home court for North Carolina Central University's athletic programs, particularly its basketball teams.
  • E. Bright-Landry Hockey Center
    Bright-Landry Hockey Center is an ice hockey arena at Harvard University that serves as the home venue for the Harvard Crimson men's and women's ice hockey teams.
  • 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: Mattamy Athletic Centre
Triple: [Maple Leaf Gardens, currentNameOfArenaPortion, Mattamy Athletic Centre]
Generated description
The Mattamy Athletic Centre is a multi-purpose sports and recreation facility in Toronto that occupies the former Maple Leaf Gardens, serving primarily as the home arena for Toronto Metropolitan University athletics.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Mattamy Athletic Centre
Target entity description: The Mattamy Athletic Centre is a multi-purpose sports and recreation facility in Toronto that occupies the former Maple Leaf Gardens, serving primarily as the home arena for Toronto Metropolitan University athletics.
  • A. Scotiabank Arena
    Scotiabank Arena is a major multi-purpose sports and entertainment venue in downtown Toronto, serving as the home arena for the NHL’s Toronto Maple Leafs and the NBA’s Toronto Raptors.
  • B. Thompson–Boling Arena
    Thompson–Boling Arena is a large multi-purpose indoor sports and entertainment venue located on the University of Tennessee campus in Knoxville.
  • C. Montreal Forum
    The Montreal Forum was a historic indoor arena in Montreal, Quebec, best known as the longtime home of the NHL’s Montreal Canadiens and a legendary venue in professional hockey history.
  • D. McDougald–McLendon Arena
    McDougald–McLendon Arena is an indoor sports and events venue that serves as the primary home court for North Carolina Central University's athletic programs, particularly its basketball teams.
  • E. Bright-Landry Hockey Center
    Bright-Landry Hockey Center is an ice hockey arena at Harvard University that serves as the home venue for the Harvard Crimson men's and women's ice hockey teams.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: currentNameOfArenaPortion
Context triple: [Maple Leaf Gardens, currentNameOfArenaPortion, Mattamy Athletic Centre]
  • A. arenaLocation
    Indicates that an arena is located at or within a specified place or geographic location.
  • B. homeArenaNickname
    Indicates the commonly used or informal nickname of a team's or organization's home arena.
  • C. currentName chosen
    Indicates the present or most recently assigned name associated with an entity.
  • D. mainIndoorArena
    Indicates that one entity serves as the primary indoor arena or main covered venue associated with another entity.
  • E. teamArenaControlled
    Indicates that a particular team has control or ownership over a specified arena or battleground.
  • F. None of above.

Provenance (6 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_69a2e84a0d08819087e01863fcd9abf1 completed Feb. 28, 2026, 1:06 p.m.
NER Named-entity recognition batch_69a2f232fa688190b08a2fe3f22c7a6e completed Feb. 28, 2026, 1:48 p.m.
NED1 Entity disambiguation (via context triple) batch_69a4a42a4a648190a1a01d823b698ae3 completed March 1, 2026, 8:40 p.m.
NEDg Description generation batch_69a4a492d2d08190945f9b5bd1e8dfa5 completed March 1, 2026, 8:41 p.m.
NED2 Entity disambiguation (via description) batch_69a4a52e4ae081909f880462479fc51f completed March 1, 2026, 8:44 p.m.
PD Predicate disambiguation batch_69a2f013c05481909e6dc87e7b20ebd8 completed Feb. 28, 2026, 1:39 p.m.
Created at: Feb. 28, 2026, 1:12 p.m.