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.

Example Input: (No, I'm not saying homsexuality is like either of these issues; I'm simply saying that indeed many Catholics and the Catholic church leadership takes it just as seriously as what they consider to be sin).
Example Output: Valid

Example Input: 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.
Example Output: Valid

Example Input: Yet certainly this nation could also be said to be P.O.ed that gays are not granted equality, for the topic is incredibly controversial.
Example Output:
Valid