Several dogs are running through the dirt.
A couple of dogs are running across the large field.
Several dogs is not necessarily a couple of dogs and running through the dirt is not necessarily running across the large field.
exists e1 s1 x1 x2.(n_dirt(x2) & through(e1,x2) & Actor(e1,x1) & v_run(e1) & n_dog(x1) & a_several(s1) & Theme(s1,x1))
exists e1 s1 x1 x2 x3.(n_field(x3) & a_large(s1) & Theme(s1,x3) & across(e1,x3) & Actor(e1,x1) & v_run(e1) & of(x1,x2) & n_dog(x2) & n_couple(x1))