Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.

The Bryce Canyon and Zion National Parks are in which US state?
bryce canyon national park

On which holiday island are the peaks of 'Ruivo' and 'Arieiro', and the airport of 'Santa Cruz'?
pico do arieiro

What is the capital city of Botswana?

botswana