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 prefer to make up my own mind, rather than have it made up for me by people that believe the ignorance of 2000 years ago should return.
Example Output: Invalid

Example Input: That's a real adult attitude when dealing with an enemy who has vowed to NEVER STOP THEIR COWARDLY ATTACKS ON CIVILIANS UNTIL THEY HAVE UTTERLY AND TOTALLY DESTROYED US.
Example Output: Invalid

Example Input: for example in girls man gyns and in boys girl gyns if you do not believe give another evidence.
Example Output:
Invalid