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: Tie this in with cultural values that truly encourage familial and social ties and don't demand so many sacrifices in the name of $$$$ and you get more successful kids, and, to stay on topic, much, much lower incarceration rates.
Example Output: Invalid

Example Input: Candian society is very accepting of gay people and has instituted equal marriage for same-sex couples.
Example Output: Valid

Example Input: As shown last year with Mark Foley, there are lots of gays who work for repuke congress people on capital hill.
Example Output:
Invalid