(By Martin Haspelmath): "This feature (based on WALS feature 33, by Matthew S. Dryer) considers the way in which the plural is marked if a language has overt plural marking: by a prefix, a suffix, a stem change, a tone or stress change, reduplication, or a plural word, which may precede or follow the noun (or noun phrase). The first value means that the language has no nominal plural marking."