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: I don't see how this is NOT related anyway.
Example Output: Invalid

Example Input: gays will have or not have gay marriage based on the law.
Example Output: Valid

Example Input: I have no problem with homosexuality, but marriage should be between a man and woman.
Example Output:
Valid