A brown dog digging for a ball in the sand
A dog digging up what he buried earlier.
A dog digging in the sand does not imply the dog is digging up what he buried earlier.
exists e1 s1 x1 x2 x3 x4.(n_sand(x4) & a_topic(x1) & for(e1,x3) & in(x3,x4) & n_ball(x3) & Actor(e1,x2) & v_dig(e1) & (x1 = x2) & n_dog(x1) & a_brown(s1) & Theme(s1,x1))
exists x1 x2.(a_topic(x1) & exists e1 e2 s1 s2 x3.(n_thing(x3) & a_up(s2) & Manner(e2,s2) & Theme(e2,x3) & Actor(e2,x2) & v_dig(e2) & a_earlier(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x1) & v_bury(e1)) & n_male(x1) & (x1 = x2) & n_dog(x1))