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.

Example Input: I demanded facts rather than common sense to back up your assertion that facts and common sense are antithetical (not different, mind you, but antithetical).
Example Output: Invalid

Example Input: Homosexual marriage is something that religious people disagree with by drawing a false line between right and wrong.
Example Output: Valid

Example Input: I've latched onto the idea that you're main reason for being here is to post beligerantly about and to posters you disagree with about THEM rather than the topics at hand.
Example Output:
Invalid