A gray dog is walking through a grassy field.
The dog is lost.
Sentence 1 is missing dog is lost.
exists e1 s1 s2 x1 x2.(through(e1,x2) & n_field(x2) & a_grassy(s2) & Theme(s2,x2) & Actor(e1,x1) & v_walk(e1) & n_dog(x1) & a_gray(s1) & Theme(s1,x1))
exists e1 x1.(n_dog(x1) & Theme(e1,x1) & v_lose(e1))