Input question: Which British actor plays the part of Martin Luther King in the 2014 film 'Selma'?

Output answer: david oyelowo

Input question: In which continent is the Beardmore Glacier?

Output answer: antarctica

Input question: A radioactive form of which element was responsible for the death of the former KGB officer Alexander Litvinenko in 2006?

Output answer: polonium

Input question: Which English born author and inventor was a Radar instructor during world war two, pioneered the science of geostationary satellite orbiting in the late 1940's, discovered underwater ruins while scuba diving off Sri Lanka in 1956 and was knighted by the Queen in 1998, 10 years before his death?

Output answer:
arthur c clarke