A group of people gathered out on a deck.
People are on the outside deck.
People are out on a deck which implies that they are on the outside deck.
exists e1 s1 x1 x2 x3.(on(e1,x3) & n_deck(x3) & a_out(s1) & Manner(e1,s1) & Actor(e1,x1) & v_gather(e1) & of(x1,x2) & n_people(x2) & n_group(x1))
exists p1 s1 x1 x2.(n_deck(x2) & a_outside(s1) & Theme(s1,x2) & on(x1,x2) & n_people(x1))