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

Input: Consider Input: July 1938 saw the first ascent of the North Face of which Alpine mountain?

Output: alps


Input: Consider Input: Which British composer wrote the music used as the theme for Desert Island Discs  He also wrote the Dambusters march and the Knightsbridge march.?

Output: the dam busters


Input: Consider Input: Which river flows through or forms the border of Germany, Austria, Slovakia, Hungary, Croatia, Serbia, Romania, Bulgaria, Moldova and Ukraine?


Output: hungary