Input question: Which Cole Porter musical featured the song 'Just One Of Those Things'?

Output answer: paris

Input question: What instant messaging service did Facebook purchase for $19 billion in 2014?

Output answer: whatsapp

Input question: What comet is responsible for the Perseid meteor shower, through which Earth passes every July/August?

Output answer: swift tuttle

Input question: By population what is the second city of Belgium?

Output answer:
antwerp