There is a man sitting on a bus holding his head in his hands.
A man rides home from work on the bus.
Sitting on a bus does not imply that a man is riding home from work.
exists p1 x1 e2 e1 x2 x3 x4 x5 x6.((x1 = x2) & for(e1,e2) & in(e2,x6) & n_hand(x6) & of(x6,x2) & n_male(x2) & n_male(x2) & Theme(e2,x5) & Actor(e2,x3) & v_hold(e2) & n_head(x5) & of(x5,x2) & on(e1,x4) & n_bus(x4) & Actor(e1,x3) & v_sit(e1) & (x2 = x3) & n_man(x2))
exists e1 x1 x2 x3 x4.(n_bus(x4) & from(e1,x3) & on(x3,x4) & n_work(x3) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_home(x2) & n_man(x1))