A man on a ladder is power washing a building.
A man is watching t.v.
The man can't be power washing a building and watching TV at the same time.
exists e1 p1 x1 x2 x3.(for(p1,e1) & Theme(e1,x3) & Actor(e1,x1) & v_wash(e1) & n_building(x3) & exists x4.((x1 = x4) & n_power(x4)) & on(x1,x2) & n_ladder(x2) & n_man(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_watch(e1) & n_t.v(x2) & n_man(x1))