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:
There might be some unforseen harm in same-sex marriage, but if that harm cannot be listed or spoken of, then we have no right banning same-sex marriage.
answer:
Valid


question:
I believe you will see a major sociological shift in opinion on many social issues as the baby boomers die off and the curent young generations age.
answer:
Valid


question:
If the concept of 'harm' is to decide whether or not gay people should be allowed to redefine the institution of marriage, then gay rights groups have little to stand on.
answer:

Valid