The dogs run in the green field.
There are dogs swimming in a lake.
Running is not swimming.
exists e1 s1 x1 x2.(n_field(x2) & a_green(s1) & Theme(s1,x2) & n_dog(x1) & in(e1,x2) & Actor(e1,x1) & v_run(e1))
exists p1 x1 e1 x2 x3 x4.((x1 = x2) & in(e1,x4) & n_lake(x4) & Actor(e1,x3) & v_swim(e1) & (x2 = x3) & n_dog(x2))