; has two kinds of behaviors. One kind of behavior is evident when dealing with sentences where the supplied nouns are unboxed: 1;2;3 +-+-+-+ |1|2|3| +-+-+-+ The other kind of behavior is evident when dealing with sentences where the supplied nouns are boxed: a:;a:;a: +--+--++ |++|++|| |||||||| |++|++|| +--+--++