Triple

T2572625
Position Surface form Disambiguated ID Type / Status
Subject Black Canadians E57698 entity
Predicate earliestDocumentedIndividuals P22779 FINISHED
Object Mathieu da Costa
Mathieu da Costa was an early 17th-century interpreter and navigator of African descent who is recognized as the first recorded Black person to have visited what is now Canada.
E280568 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: Mathieu da Costa | Statement: [Black Canadians, earliestDocumentedIndividuals, Mathieu da Costa]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Mathieu da Costa
Context triple: [Black Canadians, earliestDocumentedIndividuals, Mathieu da Costa]
  • A. Jeremias Posier
    Jeremias Posier was an 18th-century jeweler best known for crafting the Imperial Crown of Russia used in the coronation of Russian emperors.
  • B. Toussaint Bréda
    Toussaint Bréda, better known as Toussaint Louverture, was the formerly enslaved leader who became the principal architect and military strategist of the Haitian Revolution and a founding figure of Haiti’s independence movement.
  • C. Charles Barbaroux
    Charles Barbaroux was a prominent French revolutionary politician and lawyer associated with the Girondin faction during the French Revolution.
  • D. Gabriel Leveque
    Gabriel Leveque was an artist known for creating religious murals, including notable works in Port-au-Prince’s Holy Trinity Cathedral.
  • E. Antoine Étex
    Antoine Étex was a 19th-century French sculptor, painter, and architect known for his Romantic and monumental works, including sculptures on the Arc de Triomphe in Paris.
  • 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: Mathieu da Costa
Triple: [Black Canadians, earliestDocumentedIndividuals, Mathieu da Costa]
Generated description
Mathieu da Costa was an early 17th-century interpreter and navigator of African descent who is recognized as the first recorded Black person to have visited what is now Canada.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Mathieu da Costa
Target entity description: Mathieu da Costa was an early 17th-century interpreter and navigator of African descent who is recognized as the first recorded Black person to have visited what is now Canada.
  • A. Jeremias Posier
    Jeremias Posier was an 18th-century jeweler best known for crafting the Imperial Crown of Russia used in the coronation of Russian emperors.
  • B. Toussaint Bréda
    Toussaint Bréda, better known as Toussaint Louverture, was the formerly enslaved leader who became the principal architect and military strategist of the Haitian Revolution and a founding figure of Haiti’s independence movement.
  • C. Charles Barbaroux
    Charles Barbaroux was a prominent French revolutionary politician and lawyer associated with the Girondin faction during the French Revolution.
  • D. Gabriel Leveque
    Gabriel Leveque was an artist known for creating religious murals, including notable works in Port-au-Prince’s Holy Trinity Cathedral.
  • E. Antoine Étex
    Antoine Étex was a 19th-century French sculptor, painter, and architect known for his Romantic and monumental works, including sculptures on the Arc de Triomphe in Paris.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: earliestDocumentedIndividuals
Context triple: [Black Canadians, earliestDocumentedIndividuals, Mathieu da Costa]
  • A. historicalPeople
    Indicates that the related entities are people who lived in or are associated with a past historical period or context.
  • B. earliestKnownHolder chosen
    Indicates that the subject is the first known entity in time to have possessed, held, or been assigned the object.
  • C. foundingAncestor
    Indicates that one entity is the original progenitor or earliest known ancestor from whom another entity or lineage descends.
  • D. historicalFigure
    Indicates that an entity is recognized as a notable person from the past who played a significant role in history.
  • E. pioneerOf
    Indicates that an entity was among the first to develop, introduce, or significantly advance another entity, concept, or practice.
  • 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_69ab4a51410081908501dcf8bad9adc4 completed March 6, 2026, 9:42 p.m.
NER Named-entity recognition batch_69abd3853c848190970e8a2da16d726d completed March 7, 2026, 7:28 a.m.
NED1 Entity disambiguation (via context triple) batch_69af657028f08190b461442bfc7489e1 completed March 10, 2026, 12:27 a.m.
NEDg Description generation batch_69af6de00ff48190ba9198e91276ec3d completed March 10, 2026, 1:03 a.m.
NED2 Entity disambiguation (via description) batch_69af6f55bbb481908f75d923caeb8a1c completed March 10, 2026, 1:09 a.m.
PD Predicate disambiguation batch_69abd0ce4dcc8190b17a65abf9bd1bb0 completed March 7, 2026, 7:16 a.m.
Created at: March 6, 2026, 9:48 p.m.