a lone skier skiing down a snowy mountain on one ski.
The skier has one broken ski.
Skiing down one ski does not imply a broken ski.
exists s1 s2 x1 x2 x3 x4.(a_topic(x1) & down(x1,x3) & on(x3,x4) & n_ski(x4) & card_eq_1(x4) & n_mountain(x3) & a_snowy(s2) & Theme(s2,x3) & n_skiing(x1) & of(x1,x2) & n_skier(x2) & a_lone(s1) & Theme(s1,x1))
exists e2 e1 x1 x2.(n_skier(x1) & Theme(e2,x2) & Actor(e2,x1) & v_have(e2) & n_ski(x2) & Theme(e1,x2) & v_break(e1) & card_eq_1(x2))