A boy sits on a bus and sleeps, as a man walks past the window beside him on the outside.
A man is walking on the sidewalk.
Just because the man is walking past the window of the bus does not mean he is walking on the sidewalk as opposed to walking on the street.
exists e1 p1 x1 x2 x3 x4 x6 x7.(n_outside(x7) & n_window(x6) & exists e2 x5.(on(e2,x7) & past(e2,x6) & beside(x6,x1) & Actor(e2,x5) & v_walk(e2) & n_man(x5)) & n_male(x1) & as(e1,p1) & on(e1,x2) & subset_of(x4,x2) & n_sleep(x4) & subset_of(x3,x2) & n_bus(x3) & Actor(e1,x1) & v_sit(e1) & n_boy(x1))
exists e1 x1 x2.(n_sidewalk(x2) & on(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_man(x1))