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:
In the case of same-sex marriage, homosexuals are completely denied equality, for they are not even allowed the same marriage benefits that others recieve without changing their sexuality.

Ex Output:
Valid


Ex Input:
The issues of being black are not merely related to the single physical attribute of skin color.

Ex Output:
Invalid


Ex Input:
Man-woman marriage is legal and gets state goodies, but man-man and woman-woman marriages are illegal.

Ex Output:

Valid