  The Stranger announces that there are five great kinds (Sophist 254b–c), and he will ask two questions about them: (1) Of what sort are they? and (2) what capacity do they have to associate with other things?  (Sophist 254c). The five kinds are change, rest, being, sameness and difference, and he will eventually interpret not-being as difference (Sophist 257b, 258e–259a). He does not say that these five are the only great kinds.  There are probably others, including likeness and unlikeness, oneness and multitude (cf. Parmenides 129d–e and 130b). The second part of the Parmenides investigates such kinds, especially oneness and multitude, being and not-being, but also sameness and difference, likeness and unlikeness, equality and inequality, and others. The visitor presumably selects the five he does in the Sophist, because for the present purpose he needs a pair of opposites that exclude each other (change and rest, described as “most opposite” [Sophist 250a], serve as mutually exclusive consonant forms) and three vowel forms—being, sameness, and difference—enabling kinds to fit together or to be marked off from others.