A man putting spackle on the wall.
A man is hitting the wall with a sludgehammer
putting spackle and hitting with a sludgehammer are very different activities.
exists e1 x1 x2 x3 x4.(n_wall(x4) & a_topic(x1) & on(e1,x4) & Theme(e1,x3) & Actor(e1,x2) & v_put(e1) & n_spackle(x3) & (x1 = x2) & n_man(x1))
exists e1 x1 x2 x3.(n_wall(x2) & Theme(e1,x2) & Actor(e1,x1) & v_hit(e1) & with(x2,x3) & n_sludgehammer(x3) & n_man(x1))