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: Specifically if the case can be made using the framer's actual words, and not just the scholars' presentation.
Example Output: Invalid

Example Input: A gay person could hit his spouse, a straight person could also do so, or a sibling marriage could have a baby with birth defects.
Example Output: Valid

Example Input: I suppose that you wouldn't agree with people who claim that western civilization and science as we know it were founded by the Judeo-Christian worldview.
Example Output:
Invalid