Input question: Who played a professional boxer in a 2004 film?

Output answer: hilary swank

Input question: Which Roman emperor is known by a name which translates as 'Little Boots'?

Output answer: caligula

Input question: Which is the largest moon of Uranus?

Output answer: titania

Input question: Which fish became subject to EU fishing quota arguments in 2013 due to its significant movement into Icelandic waters?

Output answer:
mackerel