etaduktaṃ bhavati ye hyekapratyavamarśaṃ prati kāraṇabhāvaṃ na pratipadyanteta evāsamānā iti vyavahriyante, ye tu pratipadyante te samānā iti //
This means: those which do not serve as causes for a single recognition are called "dissimilar", while those which do serve [as such causes] are called "similar"