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: Why, then, is it wrong to once again evolve our definition of marriage to include two consenting adults, regardless of race and sexual orientation?

A: Valid
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Q: A gay person could hit his spouse, a straight person could also do so, or a sibling marriage could have a baby with birth defects.

A: Valid
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Q: It's weird indeed that all states except one allow single gay people to adopt children, but many do not allow gay couples to be adoptive parents together.

A:
Valid
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