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

Input: Consider Input: Which country on the West African coast lies between The Democratic Republic of the Congo and Namibia?

Output: democratic republic of the congo


Input: Consider Input: Who wrote the novel 'Brideshead Revisited'?

Output: brideshead revisited


Input: Consider Input: Which artist collaborated with architects Herzog & de Meuron as consultant in building the Beijing National Stadium for the 2008 Olympics?


Output: beijing national stadium