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: Back to the issue (if you can), there are no significant differences between the arguement for gay marriage recognition, and say, co-habitation recognition, or polygamy marriage recognition.
Example Output: Valid

Example Input: Then twist around words to fit in this weird idea you have that somehow gays are discriminating against you by wanting to get married.
Example Output: Valid

Example Input: The fact that other types of legitimate state interest may exist does not change your misrepresentation of the two cases discussed.
Example Output:
Invalid