a hotel concierge with a top hat and black coat greets at the front door of a building.
A person greet others.
hotel concierge greets at the front door of a building means person greet others
exists s1 s2 s3 x1 x2 x3 x4 x5 x6 x7 x8.(n_door(x7) & a_front(s3) & Theme(s3,x7) & a_topic(x1) & with(x1,x3) & subset_of(x5,x3) & at(x5,x7) & of(x7,x8) & n_building(x8) & n_greet(x5) & of(x5,x6) & n_coat(x6) & a_black(s2) & Theme(s2,x5) & subset_of(x4,x3) & n_hat(x4) & a_top(s1) & Theme(s1,x4) & n_concierge(x1) & of(x1,x2) & n_hotel(x2))
exists x1 x2 x3.(a_topic(x1) & -(x1 = x2) & n_person(x2) & n_person(x1) & of(x1,x3) & n_greet(x3) & of(x1,x2) & n_person(x2))