A black and brown dog stands on a roof.
The white dog runs through the field.
The dog cannot stand on the roof and run through a field at the same time.
exists e1 s1 s2 x1 x2.(on(e1,x2) & n_roof(x2) & Actor(e1,x1) & v_stand(e1) & n_dog(x1) & a_brown(s2) & Theme(s2,x1) & a_black(s1) & Theme(s1,x1))
exists e1 s1 x1 x2.(n_field(x2) & n_dog(x1) & a_white(s1) & Theme(s1,x1) & through(e1,x2) & Actor(e1,x1) & v_run(e1))