A young boy waters a tree with a garden hose.
A young boy is setting a tree on fire.
The boy can't be setting the tree on fire while watering the tree with a garden hose. Also, impossible to set a wet tree on fire.
all x1.(n_tree(x1) -> exists s1 x2 x3 x4 x5.(a_topic(x2) & with(x2,x4) & n_hose(x4) & of(x4,x5) & n_garden(x5) & for(x2,x1) & n_waters(x2) & of(x2,x3) & n_boy(x3) & a_young(s1) & Theme(s1,x2)))
exists e1 s1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_set(e1) & on(x2,x3) & n_fire(x3) & n_tree(x2) & n_boy(x1) & a_young(s1) & Theme(s1,x1))