A group of people on the side of a busy street.
The street is empty and has no pedestrians.
A group of people on a busy street is the exact opposite idea of an empty street with no pedestrians.
exists s1 x1 x2 x3 x4.(n_side(x3) & a_topic(x1) & of(x1,x2) & on(x2,x3) & of(x3,x4) & n_street(x4) & a_busy(s1) & Theme(s1,x4) & n_people(x2) & n_group(x1))
exists s1 x1.(n_street(x1) & -exists e1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_pedestrian(x2)) & Theme(s1,x1) & a_empty(s1))