We would like you to assess the QUALITY of each of the following argument (discussing Gay Marriage) and determine if the argument is Valid or Invalid. A valid argument is clearly interpretable and either expresses an argument, or a premise or a conclusion that can be used in an argument for the topic of gay marriage. An invalid argument is a phrase that cannot be interpreted as an argument or not on the topic of gay marriage.

Input: Consider Input: If the ony argument against it is a diversion fallacy, a false analogy, a strawman, or a false dilemma, we don't have an argument, and straight and Christian marriages should be allowed.

Output: Valid


Input: Consider Input: But I am drawing a parallel between the arguments by the Commonwealth of Virginia and the arguments by those who claim that gay people already have equal rights, including the right to marry someone of the opposite-sex.

Output: Valid


Input: Consider Input: Marriage has evolved over the years, and has involved different things in different times and cultures."


Output: Valid