A man with a white helmet stands on a snowy mountaintop.
The man is laying down.
Man can't be laying down if he stands.
exists e1 s1 s2 x1 x2 x3.(on(e1,x3) & n_mountaintop(x3) & a_snowy(s2) & Theme(s2,x3) & Actor(e1,x1) & v_stand(e1) & with(x1,x2) & n_helmet(x2) & a_white(s1) & Theme(s1,x2) & n_man(x1))
exists e1 s1 x1.(n_man(x1) & a_down(s1) & Manner(e1,s1) & Actor(e1,x1) & v_lay(e1))