There is a sheep lying on the ground.
A sheep is resting.
Sheep rest by lying on the ground and sleeping.
exists p1 x1 x4.(n_ground(x4) & exists e1 x2 x3.((x1 = x2) & on(e1,x4) & Actor(e1,x3) & v_lie(e1) & (x2 = x3) & n_sheep(x2)))
exists e1 x1.(Actor(e1,x1) & v_rest(e1) & n_sheep(x1))