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.
Q: Sent1: The argument in favor of same-sex marriage is based on religion often as well; whole bunches of people hold religious beliefs which state that marriage is between any two people who are not related by family.
 Sent2: But concerning marriage per se it has always been a matter for society as a whole with it always being held as between people of the opposite sex.
A: 
Not similar