Two young girls are drawing on a wall with sidewalk chalk.
Two girls draw stick figures on the wall with pink chalk.
The fact that the girls are drawing on the wall does not indicate that they are drawing stick figures or anything specific.  Nothing about the fact that they are using chalk indicates that the color of the chalk is pink.
exists e1 s1 x1 x2 x3 x4.(with(e1,x3) & n_chalk(x3) & of(x3,x4) & n_sidewalk(x4) & on(e1,x2) & n_wall(x2) & Actor(e1,x1) & v_draw(e1) & n_girl(x1) & a_young(s1) & Theme(s1,x1) & card_eq_2(x1))
exists e1 s1 x1 x2 x3 x4 x5.(n_wall(x4) & with(e1,x5) & n_chalk(x5) & a_pink(s1) & Theme(s1,x5) & on(e1,x4) & Theme(e1,x2) & Actor(e1,x1) & v_draw(e1) & n_figure(x2) & of(x2,x3) & n_stick(x3) & n_girl(x1) & card_eq_2(x1))