You will be given a topic and an argument. Decide the argument's stance towards that topic. The argument's stance is in favor or against the topic. If the argument supports that topic, answer with "in favor"; otherwise, if the argument opposes the topic, answer with "against".

Input: Consider Input: topic: Solar energy
argument: Nuclear power is a more potent and efficient source of energy.

Output: against


Input: Consider Input: topic: Withdrawing from Iraq
argument: Mending relations with countries that opposed the war would make it easier to fight the war on terror.

Output: in favor


Input: Consider Input: topic: Manned mission to Mars
argument: Martian dust is a major risk to a manned mission


Output: against