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:
Many of those who oppose same sex marriage have forgotten that gay people still get married in their hearts and that not having a piece of paper will not stop people from feeling like they are married.
answer:
Valid


question:
It confuses children about gender roles and expectations of society, and only a man & woman can pro-create.
answer:
Valid


question:
i agree with gay marriage because it is not fair to them that only man and women who are in love can only get married.
answer:

Valid