two dogs run through a grassy patch that is surrounded by trees.
Two puppies run through a grassy patch that is surrounded by trees and bushes.
Just because the grassy patch is surrounded by trees does not mean that there are any bushes.
exists e1 e2 s1 x1 x2 x3 x4.(through(e1,x2) & Actor(e2,x4) & n_tree(x4) & Theme(e2,x3) & v_surround(e2) & (x2 = x3) & n_patch(x2) & a_grassy(s1) & Theme(s1,x2) & Actor(e1,x1) & v_run(e1) & n_dog(x1) & card_eq_2(x1))
exists e1 e2 s1 x1 x2 x3 x4 x5 x6.(through(e1,x2) & Actor(e2,x4) & subset_of(x6,x4) & n_bush(x6) & subset_of(x5,x4) & n_tree(x5) & Theme(e2,x3) & v_surround(e2) & (x2 = x3) & n_patch(x2) & a_grassy(s1) & Theme(s1,x2) & Actor(e1,x1) & v_run(e1) & n_puppy(x1) & card_eq_2(x1))