A group of people sit on the cement steps in the woods and smile.
The group of people are yelling and screaming at each other.
People who smile are not yelling and screaming.
exists e1 x1 x2 x3 x4 x5 x6 x7.(n_smile(x7) & n_wood(x6) & subset_of(x7,x5) & subset_of(x6,x5) & n_step(x3) & of(x3,x4) & n_cement(x4) & on(e1,x3) & in(x3,x5) & Actor(e1,x1) & v_sit(e1) & of(x1,x2) & n_people(x2) & n_group(x1))
exists e2 e1 x1 x2 x3 x4.(n_group(x3) & n_group(x1) & all x5.(n_other(x5) -> at(e2,x5)) & Actor(e2,x3) & v_scream(e2) & of(x3,x4) & n_people(x4) & Actor(e1,x1) & v_yell(e1) & of(x1,x2) & n_people(x2))