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 do not just 'trust' judges any more than I would trust an elected public official in other branches of government.
Example Output: Invalid

Example Input: These recognitions are not only federal but vary state to state, for instance some states recognize 1st cousin marriages while others don't, as I recall, the age of consent to marry also differs among states.
Example Output: Valid

Example Input: After all, if gays aren't spreading HIV, then we sould be concentrating on MSMs and not worrying about gay marriage, right?
Example Output:
Valid