seven children are playing on swings in a park.
Elementary school children have a class picnic at a local park.
Just because children are playing on swings in a park does not mean they are elementary school children having a class picnic.
exists e1 x1 x2 x3.(in(e1,x3) & n_park(x3) & on(e1,x2) & n_swing(x2) & Actor(e1,x1) & v_play(e1) & n_child(x1) & card_eq_7(x1))
exists e1 s1 x1 x2 x3 x4 x5 x6.(at(e1,x6) & n_park(x6) & a_local(s1) & Theme(s1,x6) & Theme(e1,x4) & Actor(e1,x1) & v_have(e1) & n_picnic(x4) & of(x4,x5) & n_class(x5) & n_child(x1) & of(x1,x3) & n_school(x3) & (x1 = x2) & ne_tim_elementary(x2))