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:
Also, marriage is not just a religious institution (especially to those who choose to marry, who are not religious), and the common law requires no particular ceremony to validate the celebration of marriage.

Ex Output:
Valid


Ex 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.

Ex Output:
Valid


Ex Input:
It is difficult to take gay rights groups seriously when they throw their enthusiastic support at only Democrat canididates who are practically no different than Republican ones on the issue.

Ex Output:

Valid