The German Shepherd is digging a large hole in the sand.
The German Shepherd is sleeping.
A dog cannot be digging and sleeping at the same time.
exists e1 s1 s2 x1 x2 x3.(n_sand(x3) & ne_nam_shepherd(x1) & a_german(s1) & Theme(s1,x1) & in(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_dig(e1) & n_hole(x2) & a_large(s2) & Theme(s2,x2))
exists e1 s1 x1.(ne_nam_shepherd(x1) & a_german(s1) & Theme(s1,x1) & Actor(e1,x1) & v_sleep(e1))