A young girl plays at a large sand box, while a woman sits and chats on a cellphone.
A girl and her Mom are at the park.
Just because a woman is near the girl does not mean she is her Mom.
exists e1 p1 s1 s2 x1 x2 x3.(exists e3 e2 x4 x5 x6.(on(e3,x6) & n_cellphone(x6) & Actor(e3,x5) & v_chat(e3) & n_woman(x5) & Actor(e2,x4) & v_sit(e2) & n_woman(x4)) & while(e1,p1) & at(e1,x2) & n_box(x2) & of(x2,x3) & n_sand(x3) & a_large(s2) & Theme(s2,x2) & Actor(e1,x1) & v_play(e1) & n_girl(x1) & a_young(s1) & Theme(s1,x1))
exists p1 x1 x2 x3 x4.(n_park(x4) & at(x1,x4) & subset_of(x3,x1) & n_mom(x3) & of(x3,x2) & n_female(x2) & subset_of(x2,x1) & n_girl(x2))