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:
*SOAWatch, a movement to challenge American foreign policy and its support for tyrants in Latin America, by calling annual attention to the School of the Americas which trains fascist terrorists.

Ex Output:
Invalid


Ex Input:
The usual reason given for banning first-cousin marriage is because there is a risk of offspring of first cousins having biological problems.

Ex Output:
Valid


Ex Input:
Using the same logic, doesn't giving couples benefits, without marriage, to gay and straight couples, probably hurt polygamists too, and hurt single people who just want to co-habitate, but don't want to register for as a couple?

Ex Output:

Valid