The girl is standing as the other girl with glasses works on her hand painting.
The two girls are playing with hand painting in an art class.
Just because the girls are hand painting doesn't necessarily imply they are in an art class.
exists e1 p1 x1.(-(x1 = x1) & n_girl(x1) & n_girl(x1) & exists e2 x2 x3 x4.(on(e2,x3) & n_painting(x3) & of(x3,x4) & n_hand(x4) & of(x3,x2) & n_female(x2) & Actor(e2,x1) & v_work(e2) & with(x1,x2) & n_glass(x2)) & as(e1,p1) & Actor(e1,x1) & v_stand(e1))
exists e1 x1 x2 x3 x4 x5.(n_girl(x1) & card_eq_2(x1) & in(e1,x4) & n_class(x4) & of(x4,x5) & n_art(x5) & with(e1,x2) & n_painting(x2) & of(x2,x3) & n_hand(x3) & Actor(e1,x1) & v_play(e1))