Four girls are sitting on a blue ATV in field.
The four girls were modeling in front of a blue ATV.
Sitting on does not imply modeling in front of.
exists e1 s1 x1 x2 x3.(on(e1,x2) & in(x2,x3) & n_field(x3) & ne_org_atv(x2) & a_blue(s1) & Theme(s1,x2) & Actor(e1,x1) & v_sit(e1) & n_girl(x1) & card_eq_4(x1))
exists e1 s1 x1 x2 x3.(n_girl(x1) & card_eq_4(x1) & in(e1,x2) & of(x2,x3) & ne_nam_atv(x3) & a_blue(s1) & Theme(s1,x3) & n_front(x2) & Actor(e1,x1) & v_model(e1))