Some sailors are posing on a ship.
Sailors are standing on an airplane.
A ship and airplane are two different modes of transportation.
exists e1 x1 x2.(on(e1,x2) & n_ship(x2) & Actor(e1,x1) & v_pose(e1) & n_sailor(x1))
exists e1 x1 x2.(on(e1,x2) & n_airplane(x2) & Actor(e1,x1) & v_stand(e1) & n_sailor(x1))