Man demonstrating an industrial saw at a fair.
A man stands in the audience observing someone doing handstands.
If the man is demonstrating an industrial saw than he is not standing in the audience observing.
exists e1 s1 x1 x2 x3.(ne_nam_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_demonstrate(e1) & at(x2,x3) & n_fair(x3) & n_saw(x2) & a_industrial(s1) & Theme(s1,x2))
exists e1 e2 e3 x1 x2 x3 x4 x5 x6.(n_audience(x2) & in(e1,x2) & Theme(e3,x4) & Actor(e3,x3) & v_observe(e3) & Theme(e2,x6) & Actor(e2,x5) & v_do(e2) & n_handstand(x6) & (x4 = x5) & n_person(x4) & (x2 = x3) & Actor(e1,x1) & v_stand(e1) & n_man(x1))