A woman wearing a blue dress is drawing a picture of a boy and a girl on the sidewalk with sidewalk chalk.
A woman is taking a photograph of a group of children.
If the woman is drawing a picture then she will not be taking a photograph at the same time.
exists e1 e2 s1 x1 x2 x3 x4 x5 x6 x7 x8 x9.(with(e2,x9) & n_chalk(x9) & of(x9,x8) & n_sidewalk(x8) & n_sidewalk(x8) & Theme(e2,x4) & Actor(e2,x1) & v_draw(e2) & of(x4,x5) & subset_of(x7,x5) & on(x7,x8) & n_girl(x7) & subset_of(x6,x5) & n_boy(x6) & n_picture(x4) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_dress(x3) & a_blue(s1) & Theme(s1,x3) & (x1 = x2) & n_woman(x1))
exists e1 x1 x2 x3 x4.(Theme(e1,x2) & Actor(e1,x1) & v_take(e1) & of(x2,x3) & of(x3,x4) & n_child(x4) & n_group(x3) & n_photograph(x2) & n_woman(x1))