We would like you to classify each of the following sets of argument pairs (discussing Gay Marriage)  into either SIMILAR or NOT SIMILAR. A pair of arguments is considered SIMILAR if the arguments are about the same FACET (making the same argument), and is considered NOT SIMILAR if they do not have the same FACET. A FACET is a low level issue that often reoccurs in many arguments in support of the author's stance or in attacking the other author's position.

Sent1: Except blacks were barred from marriage to those that white people could marry, and white people were barred from marriage to those that black people could marry.
 Sent2: Just as elderly people should not be barred from marrying because they cannot reproduce, so gay people should not be barred from marrying because they cannot reproduce with each other.
Not similar