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: What others do in the bedroom is none of your or my business, and who I marry is none of your business either.
Example Output: Valid

Example Input: The movement for equal marriage rights is NOT a movement to try to force churches to marry same-sex couples.
Example Output: Valid

Example Input: I am definitely not "open" to have my opinion changed by somebody who insists on only talking about one reason.
Example Output:
Invalid