A crowd watching air balloons at night.
No one is paying attention to the air balloons in the sky.
if no one is paying attention then they aren't watching the air balloons
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & at(e1,x5) & n_night(x5) & Theme(e1,x3) & Actor(e1,x2) & v_watch(e1) & n_balloon(x3) & of(x3,x4) & n_air(x4) & (x1 = x2) & n_crowd(x1))
exists x3 x4 x5.(n_sky(x5) & n_balloon(x3) & of(x3,x4) & n_air(x4) & -exists e1 x1 x2.(to(e1,x3) & in(x3,x5) & Theme(e1,x2) & Actor(e1,x1) & v_pay(e1) & n_attention(x2) & n_one(x1)))