A little kid plays on the equipment at the park.
A little girl chases butterflies through a field.
One cannot chase butterflies if they are playing on equipment.
exists e1 s1 x1 x2 x3.(n_park(x3) & n_equipment(x2) & at(e1,x3) & on(e1,x2) & Actor(e1,x1) & v_play(e1) & n_kid(x1) & a_little(s1) & Theme(s1,x1))
exists s1 x1 x2 x3 x4.(a_topic(x1) & through(x1,x4) & n_field(x4) & n_butterfly(x1) & of(x1,x3) & n_chase(x3) & of(x1,x2) & n_girl(x2) & a_little(s1) & Theme(s1,x1))