A ski jumper enjoys winter fun.
A skier likes the winter because he is a polar bear.
a skier is a human who enjoys winter fun, polar bears cannot ski or enjoy winter
exists e1 x1 x2 x3 x4.(Theme(e1,x3) & Actor(e1,x1) & v_enjoy(e1) & n_fun(x3) & of(x3,x4) & n_winter(x4) & n_jumper(x1) & of(x1,x2) & n_ski(x2))
exists e1 p1 x1 x2.(n_male(x2) & n_winter(x2) & exists p2 s1 x3.((x2 = x3) & n_bear(x3) & a_polar(s1) & Theme(s1,x3)) & because(e1,p1) & Theme(e1,x2) & Actor(e1,x1) & v_like(e1) & n_skier(x1))