A man and woman dancing in the street.
A pair dancing in the street.
Both subjects are dancing
exists s1 x1 x2 x3 x4.(n_street(x4) & a_topic(s1) & subset_of(x2,s1) & in(x2,x4) & n_dancing(x2) & of(x2,x3) & n_woman(x3) & subset_of(x1,s1) & n_man(x1))
exists x1 x2 x3.(n_street(x3) & a_topic(x1) & in(x1,x3) & n_dancing(x1) & of(x1,x2) & n_pair(x2))