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]: BTW it is an evil vile christianist organization in every state that has put these evil vile amendments on the ballot.
[EX A]: Invalid

[EX Q]: The usual reason given for banning first-cousin marriage is because there is a risk of offspring of first cousins having biological problems.
[EX A]: Valid

[EX Q]: The comparison between racial segregation and the refusal to change the definition of marriage is invalid.
[EX A]:
Valid