Cargo is being loaded onto a ship.
A ship is loaded with cargo shortly before leaving.
Just because cargo is being loaded does not mean that it is being loaded shortly before leaving.
exists e1 x1 x2.(ne_nam_cargo(x1) & onto(e1,x2) & n_ship(x2) & Theme(e1,x1) & v_load(e1))
exists e2 e1 x1 x2.(before(e1,e2) & Actor(e2,x1) & v_leave(e2) & r_shortly(e1) & with(e1,x2) & n_cargo(x2) & Theme(e1,x1) & v_load(e1) & n_ship(x1))