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]: Marrying someone of the same sex is forbidden whether you are gay and straight, and marriage of the opposite sex is legal whether you are gay and straight.
[EX A]: Valid

[EX Q]: Homosexual sex is much riskier than heterosexual sex.The fact is that gays DON'T practice safe sex as a group and therefore, have a shortened lifespan as a group.
[EX A]: Valid

[EX Q]: When asked about benefits accompanying legally-sanctioned marriage, 81% of all respondents indicated they would want domestic partnership coverage, 77% are in favor of civil unions, and 67% want legal marriage as an option.
[EX A]:
Valid