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]: Laws against gay marriage are more harmful than beneficial as gay marriage will not harm straight people at all, but denying it will harm gay people.
[A]: Valid


[Q]: Yes, but gays would also want laws changed to accomodate THEIR form of marriage as well.
[A]: Valid


[Q]: Marriage between whites and blacks was indeed prohibited because whites regarded blacks as inferior.
[A]:
Valid