Input question: Who played the character Nellie Harvey in Coronation Street?

Output answer: mollie sugden

Input question: In which Shakespeare play do the characters Duke Frederick and Charles the Wrestler appear?

Output answer: as you like it

Input question: Which herb is a distinctive ingredient in Bearnaise sauce?

Output answer: tarragon

Input question: Which gas, indicating the presence of possible life forms, has been discovered on Mars?

Output answer:
methane