Lot of men are sitting under a shaded tree.
The men are skiing down a huge hill
The men cannot be sitting and skiing at the same time.
exists e1 s1 x1 x2 x3.(under(e1,x3) & n_tree(x3) & a_shaded(s1) & Theme(s1,x3) & Actor(e1,x1) & v_sit(e1) & of(x1,x2) & n_man(x2) & n_lot(x1))
exists e1 s1 s2 x1 x2.(n_man(x1) & a_down(s2) & Manner(e1,s2) & Theme(e1,x2) & Actor(e1,x1) & v_ski(e1) & n_hill(x2) & a_huge(s1) & Theme(s1,x2))