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 Q]: The direct debate over the right for gays to get married has been done many times, and it just isn't going to stop going back and forth between us.
[EX A]: Valid

[EX Q]: So I must ask you why exactly are you against same sex marriage when it has been shown that the ban on same sex marriage is just like the ban on interracial couples getting married?
[EX A]: Valid

[EX Q]: The U.S., as here in Canada, usues the common-law definition of marriage, which was created by courts.
[EX A]:
Valid