 This six-fold classification (which is doubtless adapted from Plato’s Statesman 302c–d) sets the stage for Aristotle’s inquiry into the best constitution, although it is modified in various ways throughout the Politics. For example, he observes that the dominant class in oligarchy (literally rule of the oligoi, i.e., few) is typically the wealthy, whereas in democracy (literally rule of the dêmos, i.e., people) it is the poor, so that these economic classes should be included in the definition of these forms (see Politics III.8, IV.4, and VI.2 for alternative accounts). Also, polity is later characterized as a kind of “mixed” constitution typified by rule of the “middle” group of citizens, a moderately wealthy class between the rich and poor (Politics IV.11).