A family playing the spray of a fountain.
A family not playing the spray of a fountain.
A family is not playing if they are not playing.
exists e1 x1 x2 x3 x4.(n_spray(x3) & a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & of(x3,x4) & n_fountain(x4) & (x1 = x2) & n_family(x1))
exists x1 x2 x3.(n_spray(x3) & a_topic(x1) & -exists e1 x4.(Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & of(x3,x4) & n_fountain(x4)) & (x1 = x2) & n_family(x1))