instruction:
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.
question:
The reason that we "Mormons" opposed gay marriage so vocally is that giving gays the right to marry is that it endangers the traditional family.
answer:
Valid


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


question:
Therefore, masturbation involving sexual fantasies (at least not of one's spouse) is undoubtedly sinful."
answer:

Invalid