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:
Marriage evolved because of moral and religious grounds rather than a mere union approved by the state... To debase marriage just to accomodate base desires of gay couples in disguise if a right is simply stupid...

Ex Output:
Valid


Ex Input:
Finally, if you're saying marriage is for the purpose of reproduction then do you feel we should add restrictions to prevent heterosexual couples who are sterile from getting married?

Ex Output:
Valid


Ex Input:
The upshot for ��_��__��_��__��_��__pro-family��_��__��_��__ groups is that if heterosexuals keep screwing up marriage, by the time gay people finally win the right nationally, we won��_��__��_��__t want to use it.

Ex Output:

Valid