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.

[Q]: If it is, as proponents suggest, discrimination to deny same-sex couples the privilege of marriage, then it is also discrimination to deny the privilege to anyone else who wants to get married.
[A]: Valid


[Q]: How people feel about polygamy has no relevance on same sex couples.
[A]: Valid


[Q]: Just as elderly people should not be barred from marrying because they cannot reproduce, so gay people should not be barred from marrying because they cannot reproduce with each other.
[A]:
Valid


