A trained police dog sits next to his handler in front of the police van.
A police dog and his handler are waiting for suspects next to the van.
A dog sits next to his handler and may not be waiting for suspects.
exists e1 s1 x1 x2 x3 x4 x5.(in(e1,x4) & of(x4,x5) & n_van(x5) & of(x5,x2) & n_police(x2) & n_police(x2) & n_front(x4) & to(e1,x3) & n_handler(x3) & of(x3,x1) & n_male(x1) & r_next(e1) & Actor(e1,x1) & v_sit(e1) & n_dog(x1) & of(x1,x2) & a_trained(s1) & Theme(s1,x1))
exists e1 x1 x2 x3 x4 x5 x6.(n_van(x6) & to(e1,x6) & r_next(e1) & for(e1,x5) & n_suspect(x5) & Actor(e1,x1) & v_wait(e1) & subset_of(x4,x1) & n_handler(x4) & of(x4,x2) & n_male(x2) & subset_of(x2,x1) & n_dog(x2) & of(x2,x3) & n_police(x3))