A group of young people dancing outside at some event.
A dog is barking at the mailman.
A dog is not considered people.
exists e1 s1 s2 x1 x2 x3 x4.(a_topic(x1) & of(x1,x2) & at(e1,x4) & n_event(x4) & a_outside(s2) & Manner(e1,s2) & Actor(e1,x3) & v_dance(e1) & (x2 = x3) & n_people(x2) & a_young(s1) & Theme(s1,x2) & n_group(x1))
exists e1 x1 x2.(n_mailman(x2) & at(e1,x2) & Actor(e1,x1) & v_bark(e1) & n_dog(x1))