The man is doing a jump while skiing.
A man is doing his stunts incorrectly.
Just because a man is doing a jump while skiing, one can not conclude that he is doing his stunts incorrectly.
exists e1 x1 x2 x3.(n_man(x1) & while(e1,x3) & n_skiing(x3) & Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_jump(x2))
exists e1 s1 x1 x2.(a_incorrectly(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_stunt(x2) & of(x2,x1) & n_male(x1) & n_man(x1))