A man that is skiing with glasses on.
A man is wearing skis and glasses.
Must be wearing skis to be skiing.
exists e1 s1 x1 x2 x3.(a_topic(x1) & a_on(s1) & Manner(e1,s1) & with(e1,x3) & n_glass(x3) & Actor(e1,x2) & v_ski(e1) & (x1 = x2) & n_man(x1))
exists e1 x1 x2 x3 x4.(Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & subset_of(x4,x2) & n_glass(x4) & subset_of(x3,x2) & n_ski(x3) & n_man(x1))