instruction:
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.
question:
If gay marriage is or is not legalized, it has no affect on laws against polygamy.
answer:
Valid


question:
There are gay people who live lies by pretending to be heterosexual or have a hard time coming out because they are terrified of their family's or society's disapproval, prejudice, or worse.
answer:
Valid


question:
Even if it was certain that allowing same-sex marriage would allow these forms of marriage, that would only be a downside of legalizing same-sex marriage, it wouldn't be a reason that same-sex marriage itself is wrong.
answer:

Valid