TASK DEFINITION: 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.
PROBLEM: He claims on the religion forum that his church prayer groups have been responsible for an HIV + patient to become HIV-, and that other' cancers have disappeared through their prayers.

SOLUTION: Invalid

PROBLEM: The fact that other types of legitimate state interest may exist does not change your misrepresentation of the two cases discussed.

SOLUTION: Invalid

PROBLEM: Neither gay nor straight parents have any right to be a parent to someone else's child.

SOLUTION:
Valid