Two girls in green shirts, and two in white shirts, are painting pictures.
The girls are standing at easels.
Painting pictures does not imply they are standing at easels.
exists e1 s1 s2 x1 x2 x3 x4 x5 x6.(Theme(e1,x6) & Actor(e1,x1) & v_paint(e1) & n_picture(x6) & in(x1,x2) & subset_of(x4,x2) & in(x4,x5) & n_shirt(x5) & a_white(s2) & Theme(s2,x5) & n_thing(x4) & card_eq_2(x4) & subset_of(x3,x2) & n_shirt(x3) & a_green(s1) & Theme(s1,x3) & n_girl(x1) & card_eq_2(x1))
exists e1 x1 x2.(n_girl(x1) & at(e1,x2) & n_easel(x2) & Actor(e1,x1) & v_stand(e1))