A small boy grins in a crowd full of people posing with their eyes closed in a sleeping position.
A small boy laughs at a joke.
Just because a small boy grins in a crowd full of people posing with their eyes closed in a sleeping position does not mean he  laughs at a joke.
exists e1 e3 e2 s1 s2 x1 x2 x3 x4 x5 x6 x7 x8.(in(e2,x8) & n_position(x8) & Actor(e3,x8) & v_sleep(e3) & Actor(e2,x1) & v_close(e2) & in(x1,x3) & of(s2,x5) & with(e1,x7) & n_eye(x7) & of(x7,x1) & n_thing(x1) & Actor(e1,x6) & v_pose(e1) & (x5 = x6) & n_people(x5) & Theme(s2,x4) & a_full(s2) & (x3 = x4) & n_crowd(x3) & n_grin(x1) & of(x1,x2) & n_boy(x2) & a_small(s1) & Theme(s1,x1))
exists s1 x1 x2 x3.(a_topic(x1) & at(x1,x3) & n_joke(x3) & n_laugh(x1) & of(x1,x2) & n_boy(x2) & a_small(s1) & Theme(s1,x1))