The couples are dancing in the streets.
There are people dancing outside.
The couples are people, and streets are outside.
exists e1 x1 x2.(n_street(x2) & n_couple(x1) & in(e1,x2) & Actor(e1,x1) & v_dance(e1))
exists p1 x1 e1 s1 x2 x3.((x1 = x2) & a_outside(s1) & Manner(e1,s1) & Actor(e1,x3) & v_dance(e1) & (x2 = x3) & n_people(x2))