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: Just cause gay marriage is legal doesn't mean anybody "accepts" us.
Example Output: Valid

Example Input: I think that Supreme Court rulings must focus on interpreting the meaning of the constitution, and not simply be political opinions issued on the basis of nothing.
Example Output: Invalid

Example Input: This recent poll shows what the other polls in the U.S. and Canada show, that those 18-29 strongly support the right to legally marry for same-sex couples...
Example Output:
Valid