A girl and a guy sitting on the ground while the girl is blowing bubbles.
Two people are having a picnic in the park.
Not all girls and guys sitting on the ground are having a picnic in the park.
exists e1 p1 s1 x1 x2 x3 x4.(n_ground(x4) & a_topic(s1) & subset_of(x2,s1) & exists e2 x5.(Theme(e2,x5) & Actor(e2,x1) & v_blow(e2) & n_bubble(x5)) & n_girl(x1) & n_girl(x1) & while(e1,p1) & on(e1,x4) & Actor(e1,x3) & v_sit(e1) & (x2 = x3) & n_guy(x2) & subset_of(x1,s1))
exists e1 x1 x2 x3.(n_park(x3) & in(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_picnic(x2) & n_people(x1) & card_eq_2(x1))