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]: It is not unjust to oppose granting to homosexual couples benefits that in justice should belong to marriage alone.
[A]: Valid


[Q]: People should have the the freedom to participate in the process in a peaceful way, as these people have done by signing the petition.
[A]: Invalid


[Q]: I've watched the economic impact argument dissolve with no basis for complaint, the AIDS argument dissolve with no basis for complaint and the objection still reeks of discrimination by mythical belief system adherents.
[A]:
Valid