A red ambulance drives down the street as two people look on.
the deserted street is filled with cats
Two people would not be looking on if the street was deserted.
exists e1 p1 s1 x1 x2 x3 x4.(n_street(x3) & exists s2.(Theme(s2,x1) & a_on(s2)) & Topic(e1,p1) & Actor(e1,x1) & v_look(e1) & as(x1,x4) & n_people(x4) & card_eq_2(x4) & down(x1,x3) & n_drive(x1) & of(x1,x2) & n_ambulance(x2) & a_red(s1) & Theme(s1,x1))
exists e1 s1 x1 x2.(n_street(x1) & a_deserted(s1) & Theme(s1,x1) & with(e1,x2) & n_cat(x2) & Theme(e1,x1) & v_fill(e1))