A man is using a leaf blower while wearing a mask.
A man is playing with a leaf blower.
Using a leaf blower does  not imply that he  is playing with it.
exists e1 e2 x1 x2 x3 x4.(while(e1,e2) & Theme(e2,x4) & Actor(e2,x1) & v_wear(e2) & n_mask(x4) & Theme(e1,x2) & Actor(e1,x1) & v_use(e1) & n_blower(x2) & of(x2,x3) & n_leaf(x3) & n_man(x1))
exists e1 x1 x2 x3.(with(e1,x2) & n_blower(x2) & of(x2,x3) & n_leaf(x3) & Actor(e1,x1) & v_play(e1) & n_man(x1))