A man is skiing in water.
The man forgot his helmet and life jacket.
Skiing does not imply he forgot his helmet and life jacket.
exists e1 x1 x2.(in(e1,x2) & n_water(x2) & Actor(e1,x1) & v_ski(e1) & n_man(x1))
exists e1 x1 x2 x3 x4 x5.(n_jacket(x4) & of(x4,x5) & n_life(x5) & n_helmet(x3) & subset_of(x4,x2) & subset_of(x3,x2) & of(x2,x1) & n_male(x1) & n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_forget(e1))