A woman sleeps on a bus seat.
A lady is riding public transportation.
A lady is a woman, and she is sleeping on a bus, which is public transportation.
exists e1 x1 x2 x3.(on(e1,x2) & n_seat(x2) & of(x2,x3) & n_bus(x3) & Actor(e1,x1) & v_sleep(e1) & n_woman(x1))
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_transportation(x2) & a_public(s1) & Theme(s1,x2) & n_lady(x1))