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: Yet you have no trouble understanding that any of those groups of people are not the same thing.
Example Output: Invalid

Example Input: You are like someone who grumbles that the courts should get involved when a law is passed you don't like, and then grumbles that politicans should get involved when the courts enforce a law you don't like.
Example Output: Invalid

Example Input: If the situation were inverted and heterosexuals were not allowed to marry and gays only were able to would you consider it equal treatment for herteosexuals?
Example Output:
Valid