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.

[EX Q]: For example, masturbation would be another example whereby the sperm's "purpose" would not be satisfied, so masturbation was immoral.
[EX A]: Valid

[EX Q]: Marriage is indeed a 'straight thing', and gay groups have taken a wholesome institution and used it to validify their sexual vices.
[EX A]: Valid

[EX Q]: 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.
[EX A]:
Valid