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

Input: Consider Input: The Church of the Savior on Spilled Blood, built on the site of the assassination of Tsar Alexander II, is in which Russian city?

Output: church of the savior on blood


Input: Consider Input: From which musical did the song 'Chim Chim Cheree' come?

Output: chim chim cher-ee


Input: Consider Input: Which city was awarded the 2020 Summer Olympics last month, beating Istanbul and Madrid ?


Output: 2020 summer olympics