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]: The exact same argument could be used to support traditional marriage.
[A]: Valid


[Q]: There are situations where we should change how we do things, because sometimes how we do things is contrary to our own constitution, our own set of fundamental principles on which have agreed and have included in the constitution.
[A]: Valid


[Q]: They feel they are backed by millenia of social and society norms whereby marriage is between two people of opposite gender.
[A]:
Valid