A boy is sitting next to a girl blowing bubbles.
A  girl walking with a boy.
the boy cant be sitting while also walking with the gill and blowing bubbles.
exists e2 e1 x1 x2 x3 x4.(to(e1,x2) & Theme(e2,x4) & Actor(e2,x3) & v_blow(e2) & n_bubble(x4) & (x2 = x3) & n_girl(x2) & r_next(e1) & Actor(e1,x1) & v_sit(e1) & n_boy(x1))
exists x1 x2 x3.(a_topic(x1) & with(x1,x3) & n_boy(x3) & n_walking(x1) & of(x1,x2) & n_girl(x2))