A girl in her pajamas is sitting on a log swing.
A girl is sitting on a swing.
The girl in her pajamas would have to be sitting on something.
exists e1 x1 x2 x3 x4.(on(e1,x3) & n_swing(x3) & of(x3,x4) & n_log(x4) & Actor(e1,x1) & v_sit(e1) & in(x1,x2) & n_pajamas(x2) & of(x2,x1) & n_female(x1) & n_girl(x1))
exists e1 x1 x2.(on(e1,x2) & n_swing(x2) & Actor(e1,x1) & v_sit(e1) & n_girl(x1))