girl on a teeter totter playing violently
Girl is on a playground teeter totter.
The teeter totter may not be on a playground.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & on(x1,x2) & a_violently(s1) & Manner(e1,s1) & Actor(e1,x4) & v_play(e1) & (x2 = x4) & n_totter(x2) & of(x2,x3) & n_teeter(x3) & n_girl(x1))
exists p1 x1.(ne_nam_girl(x1) & exists x2 x3 x4.(on(x1,x2) & n_totter(x2) & of(x2,x4) & n_teeter(x4) & of(x2,x3) & n_playground(x3)))