will be as many copies of the plural marker as there are items in a sentence ..... The data were analyzed using the VARBRUL 2 program (Sankoff,. 1975), which ...
Poplack, Shana. 1980. The notion of the plural in Puerto Rican Spanish: Competing constraints on (s) deletion. In Labov, William (ed.), Locating Language in Time and Space. New York: Academic Press. 55-67.