A person in reflective gear is riding a white horse on a cobblestone city street.
A person is riding on a carriage.
A person riding a white horse is not on a carriage.
exists e1 s1 s2 x1 x2 x3 x4 x5 x6.(on(e1,x4) & n_street(x4) & of(x4,x6) & n_city(x6) & of(x4,x5) & n_cobblestone(x5) & Theme(e1,x3) & Actor(e1,x1) & v_ride(e1) & n_horse(x3) & a_white(s2) & Theme(s2,x3) & in(x1,x2) & n_gear(x2) & a_reflective(s1) & Theme(s1,x2) & n_person(x1))
exists e1 x1 x2.(on(e1,x2) & n_carriage(x2) & Actor(e1,x1) & v_ride(e1) & n_person(x1))