Question: Who was prime minister of canada in 1920?

Disambiguated questions and answers:
context: Sir Robert Borden retired from office in 1920. He was the Chancellor of Queen's University from 1924 to 1930 and also was Chancellor of McGill University from 1918 to 1920 while still Prime Minister. Borden also served as Vice-President of The Champlain Society between 1923 and 1925. He was the Society's first Honorary President between 1925 and 1938. Borden's successor Arthur Meighen was defeated by the new Liberal leader William Lyon Mackenzie King in the 1921 election. Nevertheless, Borden would go on to represent Canada once more on the international stage when he attended the Washington Naval Conference in 1922 and signed the resulting arms reduction treaty on Canada's behalf.
question: Who was prime minister of canada in the beginning of 1920?
short_answers: Sir Robert Laird Borden, GCMG PC KC
Sir Robert Laird Borden
Sir Robert Borden
wikipage: Robert Borden
context: No context provided
question: Who was prime minister of canada in the end of 1920?
short_answers: Arthur Meighen
Arthur Meighen PC QC
context: No context provided
question: Who was Prime Minister of Canada from 12 October 1917-10 July 1920?
short_answers: Sir Robert Borden
context: No context provided
question: Who was Prime Minister of Canada from 10 July 1920-29 December 1921?
short_answers: Arthur Meighen

Long-form answers:
knowledge: content: Sir Robert Laird Borden GCMG PC KC (June 26, 1854 – June 10, 1937) was a Canadian lawyer and politician who served as the eighth prime minister of Canada, in office from 1911 to 1920.
wikipage: Robert Borden
content: Arthur Meighen PC QC (/ˈmiːən/; 16 June 1874 – 5 August 1960) was a Canadian lawyer and politician who served as the ninth prime minister of Canada, in office from July 1920 to December 1921 and from June to September 1926.
wikipage: Arthur Meighen
long_answer: Sir Robert Borden was a Canadian lawyer and politician who served as the eighth prime minister of Canada, in office from 1911 to 1920. Arthur Meighen was a Canadian lawyer and politician who served as the ninth prime minister of Canada, in office from July 1920 to December 1921 and from June to September 1926.
knowledge: content: Sir Robert Laird Borden GCMG PC KC (June 26, 1854 – June 10, 1937) was a Canadian lawyer and politician who served as the eighth prime minister of Canada, in office from 1911 to 1920.
wikipage: Robert Borden
content: The 1911 Canadian federal election was held on September 21 to elect members of the House of Commons of Canada of the 12th Parliament of Canada.
wikipage: 1911 Canadian federal election
content: The Conservatives won, and Robert Borden became prime minister.
wikipage: 1911 Canadian federal election
content: Borden served as Prime Minister for the duration of the 12th Parliament of Canada, and for most of the 13th Parliament of Canada, before his retirement from active political life in July 1920.
wikipage: Robert Borden
long_answer: Canada had more than one prime minister in 1920. Sir Robert Borden, elected on September 21, 1911, served as Canada's eighth prime minister until July 10, 1920, before retiring from active political life. Arthur Meighen succeeded Borden and was prime minister from July 10, 1920, to December 29, 1921, when he was defeated by the new Liberal leader William Lyon Mackenzie King in the 1921 election.