A man skis on a snowy mountain.
A professional skiier is practicing for the upcoming Olympics.
Not all skiiers are professional. Not everyone skiing on a mountain is practicing for the Olympics.
exists e1 s1 x1 x2.(on(e1,x2) & n_mountain(x2) & a_snowy(s1) & Theme(s1,x2) & Actor(e1,x1) & v_ski(e1) & n_man(x1))
exists e1 s1 s2 x1 x2.(n_olympics(x2) & a_upcoming(s2) & Theme(s2,x2) & for(e1,x2) & Actor(e1,x1) & v_practice(e1) & n_skiier(x1) & a_professional(s1) & Theme(s1,x1))