A group lies in the snow while someone on a blue snow sled jumps over them.
There are people playing in the snow.
Sometimes people playing are just lying.
exists e1 p1 x1 x2.(n_thing(x2) & n_snow(x2) & exists e2 s1 x3 x4 x5.(Theme(e2,x5) & Actor(e2,x3) & v_sled(e2) & over(x5,x2) & n_jump(x5) & on(x3,x4) & n_snow(x4) & a_blue(s1) & Theme(s1,x4) & n_person(x3)) & while(e1,p1) & in(e1,x2) & Actor(e1,x1) & v_lie(e1) & n_group(x1))
exists p1 x1 x4.(n_snow(x4) & exists e1 x2 x3.((x1 = x2) & in(e1,x4) & Actor(e1,x3) & v_play(e1) & (x2 = x3) & n_people(x2)))