Input question: What South American city has the best-known Carnival celebration?

Output answer: rio de janeiro

Input question: What is the code of silence which prohibits speaking about, or divulging information about, criminal activities, used by the Mafia?

Output answer: omerta

Input question: What country was the first country in Oceania, and fifteenth overall, to legalise same-sex marriage?

Output answer: new zealand

Input question: Falco subbuteo is the scientific name for which member of the falcon family?

Output answer:
hobby