A family is sledding in the snow.
A big family is sledding in the snow.
Just because a family is sledding doesn't mean it's a big family.
exists e1 x1 x2.(n_snow(x2) & in(e1,x2) & Actor(e1,x1) & v_sled(e1) & n_family(x1))
exists e1 s1 x1 x2.(n_snow(x2) & in(e1,x2) & Actor(e1,x1) & v_sled(e1) & n_family(x1) & a_big(s1) & Theme(s1,x1))