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:
People with good hearts, that are great role models, and can contribute more than someone who sprnds their entire being trying to discriminate against them.
answer:
Invalid


question:
Then it is argued that since A has property P, so
answer:
Invalid


question:
By your argument we should not allow heterosexuals to marry, as in this instance they may have the greatest negative effect on general welfare, due to their greater numbers.
answer:

Valid