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.

Q: Then, why is it sad that "people do not like accepting that people are very different".

A: Invalid
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Q: These battles are going to be fought on different fronts.

A: Invalid
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Q: Although gays have all the rights of heterosexuals, the laws are currently designed so that heterosexual relationships are rewarded while homosexual relationships are punished.

A:
Valid
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