Several persons on the backs of camels traversing a hill.
A single guy looks for a place to park his car.
A single guy looks for a place to park his car and several persons on camels traversing a hill.  It cannot be both at the same time.  It must be one or the other.
exists e1 s1 x1 x2 x3 x4 x5.(n_back(x2) & a_topic(x1) & on(x1,x2) & of(x2,x3) & Theme(e1,x5) & Actor(e1,x4) & v_traverse(e1) & n_hill(x5) & (x3 = x4) & n_camel(x3) & n_person(x1) & a_several(s1) & Theme(s1,x1))
exists e1 p1 s1 x1 x2 x3.(for(e1,x2) & Topic(x2,p1) & exists e2.(Theme(e2,x3) & Actor(e2,x2) & v_park(e2)) & n_car(x3) & of(x3,x1) & n_male(x1) & n_place(x2) & Actor(e1,x1) & v_look(e1) & n_guy(x1) & a_single(s1) & Theme(s1,x1))