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.

Ex Input:
Some changes allowed different people to marry (blacks and whites, for example), while others expanded the rights of married people (like Federal tax breaks).

Ex Output:
Valid


Ex Input:
BTW it is an evil vile christianist organization in every state that has put these evil vile amendments on the ballot.

Ex Output:
Invalid


Ex Input:
Allowing gay marriage without also rewriting common law statutes discriminates against unmarried heteros living together.

Ex Output:

Valid