A clown in a street is playing with a hula hoop.
The clown is entertaining people
A clown in a street is not necessarily entertaining people.
exists e1 x1 x2 x3 x4.(with(e1,x3) & n_hoop(x3) & of(x3,x4) & n_hula(x4) & Actor(e1,x1) & v_play(e1) & in(x1,x2) & n_street(x2) & n_clown(x1))
exists p1 x1.(n_clown(x1) & exists s1 x2.((x1 = x2) & n_people(x2) & a_entertaining(s1) & Theme(s1,x2)))