Man reads in a park while feeding the ducks.
A man is feeding his dog while watching TV.
The man is either feeding the ducks, or his dog. He cannot be reading in a park, if he is watching tv.
exists e2 e1 x1 x2 x3.(n_duck(x3) & while(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_feed(e2) & in(e1,x2) & n_park(x2) & Actor(e1,x1) & v_read(e1) & n_man(x1))
exists e2 e1 x1 x2 x3.(while(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_watch(e2) & n_tv(x3) & Theme(e1,x2) & Actor(e1,x1) & v_feed(e1) & n_dog(x2) & of(x2,x1) & n_male(x1) & n_man(x1))