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: People should have the the freedom to participate in the process in a peaceful way, as these people have done by signing the petition.
Example Output: Invalid

Example Input: It is my INDIVIDUAL decision to marry someone of the same sex.
Example Output: Valid

Example Input: Only in this generation of militant homosexual aggression is the traditional definition of marriage under attack as a tactic in order to normalize the homosexual lifestyle from a public policy perspective.
Example Output:
Valid