Determine whether the following disputes are verbal, factual, or some combination of the two. If verbal, discuss whether the dispute arises from vagueness or ambiguity.
JOSEPH: Adult human beings have the right to marry whomever they please, as long as that person is not a close relative. From this it follows that gays have the right to marry someone of their own sex.
STEPHEN: Your argument makes no sense. Rights are created by laws, and since there is no federal law that gives gays the right to marry, they have no such right.