A man is standing in a forest practicing a martial art.
A man is swimming in the stream
A man standing can not be swimming while being in a forest is not in the stream.
exists e1 e2 s1 x1 x2 x3.(for(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_practice(e2) & n_art(x3) & a_martial(s1) & Theme(s1,x3) & in(e1,x2) & n_forest(x2) & Actor(e1,x1) & v_stand(e1) & n_man(x1))
exists e1 x1 x2.(n_stream(x2) & in(e1,x2) & Actor(e1,x1) & v_swim(e1) & n_man(x1))