Four crosscountry skiers climb uphill.
Five downhill skiers ski down the mountain.
Climb uphill and ski down are different.
exists s1 s2 x1 x2 x3.(n_uphill(x1) & a_.(s2) & Theme(s2,x1) & of(x1,x3) & n_climb(x3) & of(x1,x2) & n_skier(x2) & a_crosscountry(s1) & Theme(s1,x1) & card_eq_4(x1) & a_topic(x1))
exists e1 s1 x1 x2.(n_mountain(x2) & down(e1,x2) & Actor(e1,x1) & v_ski(e1) & n_skier(x1) & a_downhill(s1) & Theme(s1,x1) & card_eq_5(x1))