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:
You did suggest that unmarried heterosexual couples would still be discriminated against, even if we allowed same-sex couples to marry.
answer:
Valid


question:
Let them marry and have the same government benefits, but let the church decide who its priests are.
answer:
Valid


question:
In fact it is worse, if we ban drugs and find that it was the wrong decision at least it is possible to ban them again, allowing gay marriage is a once only decision .
answer:

Valid