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: Except blacks were barred from marriage to those that white people could marry, and white people were barred from marriage to those that black people could marry.
Example Output: Valid

Example Input: Basically, Foundit's list of "suspect posters" seems to amounts to anyone who actually debates with him and disagrees with him any more than an nominal amount.
Example Output: Invalid

Example Input: 1)In this case it is clear they are and if you weren't sure from the first quote and the lengthy explanation in that court case then the slaughterhouse case just blatantly said it as well.
Example Output:
Invalid