Mules loaded with luggage with a man on one of them.
The mule is strained
The mule isn't necessarily strained.
exists e1 x1 x2 x3 x4.(ne_nam_mules(x1) & with(e1,x3) & on(x3,x4) & of(x4,x2) & n_thing(x2) & n_thing(x4) & card_eq_1(x4) & n_man(x3) & with(e1,x2) & n_luggage(x2) & Actor(e1,x1) & v_load(e1))
exists e1 x1.(n_mule(x1) & Theme(e1,x1) & v_strain(e1))