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 we want to distinguish between same-sex marriage and opposite-sex marriage, we can simply say, "same-sex marriage" or "opposite-sex marriage".

A: Valid
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Q: This is a particularly useful tool for a political interest group seeking political influence or possible power, as it reduces the overall criticism directed toward any of their proposals.

A: Invalid
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Q: I think the burden should be on a state that bans a form of marriage to show that that specific form of marriage does harm to people.

A:
Valid
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