A person in a hard hat is doing some work on a train track.
A tall human in a hat.
A person in a hard hat is doing some work on a train track does not mean that a person is a tall human.
exists e1 s1 x1 x2 x3 x4 x5.(Theme(e1,x3) & Actor(e1,x1) & v_do(e1) & on(x3,x4) & n_track(x4) & of(x4,x5) & n_train(x5) & n_work(x3) & in(x1,x2) & n_hat(x2) & a_hard(s1) & Theme(s1,x2) & n_person(x1))
exists s1 x1 x2.(a_topic(x1) & in(x1,x2) & n_hat(x2) & n_human(x1) & a_tall(s1) & Theme(s1,x1))