A woman sits behind a young boy with her hands on his head.
the woman is running a marathon
It is possible for a woman to sit behind a young boy with her hands on his head at the moment in time the woman couldn't in the same actions run a marathon
exists e1 s1 x1 x2 x3 x4.(on(e1,x4) & n_head(x4) & of(x4,x2) & n_male(x2) & behind(e1,x2) & with(x2,x3) & n_hand(x3) & of(x3,x1) & n_female(x1) & n_boy(x2) & a_young(s1) & Theme(s1,x2) & Actor(e1,x1) & v_sit(e1) & n_woman(x1))
exists e1 x1 x2.(n_woman(x1) & Theme(e1,x2) & Actor(e1,x1) & v_run(e1) & n_marathon(x2))