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: If one has sex with 100 people with protection, they are at a lower risk than someone who sleeps with one person and no protection.
Example Output: Invalid

Example Input: It's merely sophistry: placating the masses of undereducated people who really don't have the expertise needed to run government policy through clever political rhetoric and oration.
Example Output: Invalid

Example Input: So those arguments about haircuts, mixed fabrics, and shellfish are invalid to be applied to Christians.
Example Output:
Invalid