Lester B. Pearson
E5341
Lester B. Pearson was a Canadian diplomat and politician who served as Prime Minister of Canada and won the Nobel Peace Prize for his role in resolving the Suez Crisis.
All labels observed (5)
How this entity was disambiguated
This entity first appeared as the object of triple T41822 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Lester B. Pearson Context triple: [University of Toronto, notableAlumni, Lester B. Pearson]
-
A.
Lord Beaverbrook
Lord Beaverbrook was a powerful British newspaper magnate and politician who played a crucial role in wartime production and propaganda during the Second World War.
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B.
William Stephenson
William Stephenson was a Canadian-born spymaster and industrialist who played a key role in Allied intelligence operations during World War II and is often cited as an inspiration for Ian Fleming’s James Bond.
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C.
Justin Trudeau
Justin Trudeau is the 23rd prime minister of Canada, known for his progressive policies, advocacy on climate action and diversity, and leadership of the Liberal Party.
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D.
Trygve Lie
Trygve Lie was a Norwegian politician and diplomat who became the first Secretary-General of the United Nations, serving from 1946 to 1952.
-
E.
Claude Auchinleck
Claude Auchinleck was a senior British Army officer and field marshal best known for his leadership of Allied forces in the Middle East during the early stages of World War II.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Lester B. Pearson Target entity description: Lester B. Pearson was a Canadian diplomat and politician who served as Prime Minister of Canada and won the Nobel Peace Prize for his role in resolving the Suez Crisis.
-
A.
Lord Beaverbrook
Lord Beaverbrook was a powerful British newspaper magnate and politician who played a crucial role in wartime production and propaganda during the Second World War.
-
B.
William Stephenson
William Stephenson was a Canadian-born spymaster and industrialist who played a key role in Allied intelligence operations during World War II and is often cited as an inspiration for Ian Fleming’s James Bond.
-
C.
Justin Trudeau
Justin Trudeau is the 23rd prime minister of Canada, known for his progressive policies, advocacy on climate action and diversity, and leadership of the Liberal Party.
-
D.
Trygve Lie
Trygve Lie was a Norwegian politician and diplomat who became the first Secretary-General of the United Nations, serving from 1946 to 1952.
-
E.
Claude Auchinleck
Claude Auchinleck was a senior British Army officer and field marshal best known for his leadership of Allied forces in the Middle East during the early stages of World War II.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
Canadian politician
ⓘ
Nobel Peace Prize laureate ⓘ Prime Minister of Canada ⓘ diplomat ⓘ human ⓘ |
| awardReceived |
Companion of the Order of Canada
ⓘ
Nobel Peace Prize ⓘ Order of Merit ⓘ |
| causeOfDeath | cancer ⓘ |
| conflictParticipatedIn |
First World War
ⓘ
linked to:
World War I
|
| countryOfCitizenship | Canada ⓘ |
| dateOfBirth | 1897-04-23 ⓘ |
| dateOfDeath | 1972-12-27 ⓘ |
| educatedAt |
St John's College, Oxford
ⓘ
linked to:
St John’s College, Oxford
University of Toronto ⓘ |
| familyName | Pearson ⓘ |
| fieldOfWork |
international relations
ⓘ
politics ⓘ |
| fullName |
Lester Bowles Pearson
ⓘ
linked to:
Lester B. Pearson
|
| givenName | Lester ⓘ |
| introducedPolicy |
Adoption of the Maple Leaf flag of Canada
ⓘ
Canada Pension Plan ⓘ Universal health care framework in Canada ⓘ |
| knownFor |
advocacy of peacekeeping
ⓘ
modernization of Canadian social programs ⓘ |
| languageSpoken | English ⓘ |
| memberOfPoliticalParty | Liberal Party of Canada ⓘ |
| middleName | Bowles ⓘ |
| militaryBranch |
Canadian Army
ⓘ
linked to:
Canadian Army (pre‑1968)
|
| NobelPeacePrizeFor | proposal for a United Nations peacekeeping force during the Suez Crisis ⓘ |
| NobelPeacePrizeYear | 1957 ⓘ |
| notableAchievement | Helped create the first large-scale United Nations peacekeeping force ⓘ |
| notableWork | Role in resolving the Suez Crisis ⓘ |
| numberOfChildren | 2 ⓘ |
| officeEndTime | 1968-04-20 ⓘ |
| officeHeld | 14th Prime Minister of Canada ⓘ |
| officeStartTime | 1963-04-22 ⓘ |
| placeOfBirth | Newtonbrook, Ontario, Canada ⓘ |
| placeOfDeath |
Ottawa, Ontario, Canada
ⓘ
linked to:
Ottawa
|
| positionHeld |
Leader of the Liberal Party of Canada
ⓘ
Member of Parliament of Canada ⓘ Prime Minister of Canada ⓘ Secretary of State for External Affairs ⓘ |
| precededBy | John Diefenbaker ⓘ |
| religion | Methodism ⓘ |
| spouse | Maryon Pearson ⓘ |
| succeededBy | Pierre Trudeau ⓘ |
| workedFor |
Department of External Affairs (Canada)
ⓘ
Government of Canada ⓘ
linked to:
Canadian federal government (Ottawa)
|
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Lester B. Pearson Description of subject: Lester B. Pearson was a Canadian diplomat and politician who served as Prime Minister of Canada and won the Nobel Peace Prize for his role in resolving the Suez Crisis.
Referenced by (29)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Lester B. Pearson
linked to: Lester B. Pearson
subject linked to:
Lester
linked to: Lester B. Pearson
subject linked to:
Pearson Medal of Peace (eponym)
subject linked to:
Pearson Medal of Peace (eponym)
subject linked to:
Pearson Medal of Peace (eponym)
linked to: Lester B. Pearson
subject linked to:
Pearson Medal of Peace (eponym)
linked to: Lester B. Pearson
1968 Liberal Party of Canada leadership convention
→
hasIncumbentLeaderResigning
→
Lester B. Pearson
ⓘ