Given the task definition and input, reply with output. 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: A variety of research has also been done on the issue of comparing parenting of gay parents to straight parents, and gays are proven to be just as good parents as straights.
 Sent2: Neither gay nor straight parents have any right to be a parent to someone else's child.

Not similar