Here's a short story:

Sir Winston Leonard Spencer-Churchill, (30 November 187424 January 1965) was a British statesman, army officer, and writer. He served as Prime Minister of the United Kingdom from 1940 to 1945 and again from 1951 to 1955. As a Member of Parliament (MP), he represented five constituencies over the course of his career. As Prime Minister, Churchill led Britain to victory during World War II. He led the Conservative Party for fifteen years from 1940 to 1955. 

Churchill was born into an aristocratic family, the son of an English politician and American socialite. Joining the British Army, he saw action in British India, the Anglo–Sudan War, and the Second Boer War, gaining fame as a war correspondent and writing books about his campaigns. Moving into politics, before the First World War, he served as President of the Board of Trade, Home Secretary, and First Lord of the Admiralty as part of Asquith's Liberal government. During the war, Churchill departed from government following the disastrous Gallipoli Campaign. He briefly resumed active army service on the Western Front as commander in the Royal Scots Fusiliers. He returned to government under Lloyd George as Minister of Munitions, Secretary of State for War, Secretary of State for Air, then Secretary of State for the Colonies. After two years out of Parliament, he served as Chancellor of the Exchequer in Baldwin's Conservative government of 1924–1929, controversially returning the pound sterling in 1925 to the gold standard at its pre-war parity, a move widely seen as creating deflationary pressure on the UK economy. (End of story)

Provide your best guess for the following question. Give ONLY the guess, no other words or explanation.

For example:

Guess: <most likely guess, as short as possible; not a complete sentence, just the guess!>

Here are a few examples of questions and answers:

Question: what kind of family did Churchill grow up in?
Guess: an aristocratic family

Question: what did his parents do?
Guess: English politician and American socialite

Question: where was he a commander?
Guess: Royal Scots Fusiliers.

Question: where was he the Chancellor?
Guess: Exchequer

Question: how long was he prime minister?
Guess: 10 years in total

Question: did he lead Britain to victory?
Guess: Yes

Question: what war?
Guess: World War II

Question: what party was he a member of?
Guess: Conservative Party

Now answer the following question in the same format.

Question: when did he start politics?

before the First World War