A man in uniform tries to find something with the help of a sniffing dog.
A man is not getting help from any animals.
He is either working with the dog or not. In one sentence he is, the other states he's not getting help.
exists p1 s1 x1 x2 x4.(n_help(x4) & a_topic(x1) & in(x1,x2) & Topic(x2,p1) & exists e1 x3 x5 x6.(with(e1,x4) & of(x4,x5) & n_dog(x5) & of(x5,x6) & n_sniffing(x6) & Theme(e1,x3) & Actor(e1,x2) & v_find(e1) & n_thing(x3)) & n_try(x2) & a_uniform(s1) & Theme(s1,x2) & n_man(x1))
exists x1.(-exists e1 x2.(all x3.(n_animal(x3) -> from(e1,x3)) & Theme(e1,x2) & Actor(e1,x1) & v_get(e1) & n_help(x2)) & n_man(x1))