Input question: What is the chemical formula for laughing gas (nitrous oxide)?

Output answer: n2o

Input question: 'Dangerously In Love' and 'B'Day' are albums by which US singer?

Output answer: beyonce knowles

Input question: By what name was Thailand known until 1939?

Output answer: siam

Input question: In September 1950,where, in Korea, did UN troops land, prior to the recapture of Seoul?

Output answer:
inchon