A child sits on a sidewalk as people walk by.
The child is drawing on the sidewalk with chalk.
One can sit on the sidewalk without drawing with chalk.
exists e2 e1 s1 x1 x2 x3 x4.(on(e1,x2) & as(x2,x3) & a_by(s1) & Manner(e2,s1) & Theme(e2,x4) & v_walk(e2) & (x3 = x4) & n_people(x3) & n_sidewalk(x2) & Actor(e1,x1) & v_sit(e1) & n_child(x1))
exists e1 x1 x2 x3.(n_sidewalk(x2) & n_child(x1) & with(e1,x3) & n_chalk(x3) & on(e1,x2) & Actor(e1,x1) & v_draw(e1))