A group of people are having a picnic at the park.
People are playing games at the park.
Just because people are in the park it does not mean they are playing games.
exists e1 x1 x2 x3 x4.(n_park(x4) & at(e1,x4) & Theme(e1,x3) & Actor(e1,x1) & v_have(e1) & n_picnic(x3) & of(x1,x2) & n_people(x2) & n_group(x1))
exists e1 x1 x2 x3.(n_park(x3) & at(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_game(x2) & n_people(x1))