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: The family unit has been decimated by the high levels of single mothers, single fathers, abusive parents, neglective parents, high rates of divorce, rising rates of infeditelity, and those are just a few examples.
 Sent2: The divorce rate is over 50%, single parent families by choice are on the rise and plenty of messed up people had two parents.
Similar

Sent1: If inclusion of same sex couples being allowed to marry is what you call "redefining", then the inclusion of interracial couples would also be a "redefiniton."
 Sent2: If same sex "marriage" and not civil unions are allowed, then precedence will have been set for redefining marriage.
Not similar

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: Marriage between whites and blacks was indeed prohibited because whites regarded blacks as inferior.

Not similar

