Man riding his bike pass a ship.
A man sitting on his bike watches a ship
The man cannot be moving while riding and sitting while watching the ship
exists e1 e2 x1 x2 x3 x4.(Theme(e2,x4) & Actor(e2,x1) & v_pass(e2) & n_ship(x4) & Theme(e1,x3) & Actor(e1,x2) & v_ride(e1) & n_bike(x3) & of(x3,x1) & n_male(x1) & (x1 = x2) & n_man(x1))
exists e1 e2 x1 x2 x3 x4.(Theme(e2,x4) & Actor(e2,x1) & v_watch(e2) & n_ship(x4) & on(e1,x3) & n_bike(x3) & of(x3,x1) & n_male(x1) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_man(x1))