Triple

T4500703
Position Surface form Disambiguated ID Type / Status
Subject Mount Pleasant Cemetery, Toronto E101209 entity
Predicate hasNotableInterments P3803 FINISHED
Object Sir Henry Mill Pellatt
Sir Henry Mill Pellatt was a prominent Canadian financier and military figure best known for building Toronto’s grand Casa Loma mansion in the early 20th century.
 E450505 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: Sir Henry Mill Pellatt | Statement: [Mount Pleasant Cemetery, Toronto, hasNotableInterments, Sir Henry Mill Pellatt]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Sir Henry Mill Pellatt
Context triple: [Mount Pleasant Cemetery, Toronto, hasNotableInterments, Sir Henry Mill Pellatt]
  • A. Henry Campbell-Bannerman
    Henry Campbell-Bannerman was a British Liberal politician who served as Prime Minister of the United Kingdom from 1905 to 1908, overseeing significant social and military reforms.
  • B. C. W. Orr
    C. W. Orr was an English composer best known for his art songs, particularly his settings of A. E. Housman's poetry.
  • C. George Grant Elmslie
    George Grant Elmslie was an influential American architect associated with the Prairie School movement, known for his richly ornamented designs and collaborations with Louis Sullivan.
  • D. Charles Alling Gifford
    Charles Alling Gifford was an American architect known for designing prominent early 20th-century resort hotels and other large-scale buildings in the United States.
  • E. Robert Henry Macdonald
    Robert Henry Macdonald is a businessman best known as a co-founder of the company Ross and Macdonald.
  • 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: Sir Henry Mill Pellatt
Triple: [Mount Pleasant Cemetery, Toronto, hasNotableInterments, Sir Henry Mill Pellatt]
Generated description
Sir Henry Mill Pellatt was a prominent Canadian financier and military figure best known for building Toronto’s grand Casa Loma mansion in the early 20th century.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Sir Henry Mill Pellatt
Target entity description: Sir Henry Mill Pellatt was a prominent Canadian financier and military figure best known for building Toronto’s grand Casa Loma mansion in the early 20th century.
  • A. Henry Campbell-Bannerman
    Henry Campbell-Bannerman was a British Liberal politician who served as Prime Minister of the United Kingdom from 1905 to 1908, overseeing significant social and military reforms.
  • B. C. W. Orr
    C. W. Orr was an English composer best known for his art songs, particularly his settings of A. E. Housman's poetry.
  • C. George Grant Elmslie
    George Grant Elmslie was an influential American architect associated with the Prairie School movement, known for his richly ornamented designs and collaborations with Louis Sullivan.
  • D. Charles Alling Gifford
    Charles Alling Gifford was an American architect known for designing prominent early 20th-century resort hotels and other large-scale buildings in the United States.
  • E. Robert Henry Macdonald
    Robert Henry Macdonald is a businessman best known as a co-founder of the company Ross and Macdonald.
  • 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_69bd43d175248190894dc58b5b395c26 completed March 20, 2026, 12:55 p.m.
NER Named-entity recognition batch_69bd6231856c8190be9386a0ae15e7cf completed March 20, 2026, 3:05 p.m.
NED1 Entity disambiguation (via context triple) batch_69bdacce0f10819092e92c144627344b completed March 20, 2026, 8:23 p.m.
NEDg Description generation batch_69bdada277948190bc8b1a412da02978 completed March 20, 2026, 8:27 p.m.
NED2 Entity disambiguation (via description) batch_69bdae10bf2481908397c9c332289bb1 completed March 20, 2026, 8:29 p.m.
Created at: March 20, 2026, 1 p.m.