A man with red pants is skiing downhill.
A man has lost his skis.
a man cannot be skiing down a hill if he also lost his skis.
exists e1 s1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_ski(e1) & n_downhill(x3) & with(x1,x2) & n_pants(x2) & a_red(s1) & Theme(s1,x2) & n_man(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_lose(e1) & n_ski(x2) & of(x2,x1) & n_male(x1) & n_man(x1))