A brown and white dog running in a field of grass.
The dogs are running loose in the city.
Dogs cannot be running in the city and in a field of grass simultaneously.
exists e1 s1 s2 x1 x2 x3 x4.(a_topic(x1) & in(e1,x3) & of(x3,x4) & n_grass(x4) & n_field(x3) & Actor(e1,x2) & v_run(e1) & (x1 = x2) & n_dog(x1) & a_white(s2) & Theme(s2,x1) & a_brown(s1) & Theme(s1,x1))
exists e1 s1 x1 x2.(n_city(x2) & n_dog(x1) & in(e1,x2) & a_loose(s1) & Manner(e1,s1) & Actor(e1,x1) & v_run(e1))