A gray dog walks in the green grass, tongue hanging out.
A dog is sick.
The dog could just be warm and panting and his tongue is handing out, he may not necessarily be sick.
exists e1 e2 s1 s2 s3 x1 x2 x3 x4.(n_grass(x2) & a_green(s2) & Theme(s2,x2) & in(e1,x2) & rel(x2,x3) & a_out(s3) & Manner(e2,s3) & Actor(e2,x4) & v_hang(e2) & (x3 = x4) & n_tongue(x3) & Actor(e1,x1) & v_walk(e1) & n_dog(x1) & a_gray(s1) & Theme(s1,x1))
exists s1 x1.(Theme(s1,x1) & a_sick(s1) & n_dog(x1))