Input question: In which spacecraft did Yuri Gagarin orbit the earth in April 1961?

Output answer: vostok i

Input question: Mexico and which country are separated by the Yucatan Channel?

Output answer: cuba

Input question: What was US tennis player Billie Jean King's maiden name?

Output answer: moffitt

Input question: '21st. Century Break Down' was a 2009 number one hit album for which group?

Output answer:
green day