A group of people are lined up inside waiting.
A group of people are waiting to be seated.
The people could be lining up for any reason, there is not way to infer that they are waiting to be seated.
exists e1 s1 x1 x2 x3.(inside(e1,x3) & n_wait(x3) & a_up(s1) & Manner(e1,s1) & Theme(e1,x1) & v_line(e1) & of(x1,x2) & n_people(x2) & n_group(x1))
exists e1 p1 x1 x2.(Topic(e1,p1) & Actor(e1,x1) & v_wait(e1) & exists e2.(Theme(e2,x1) & v_seat(e2)) & of(x1,x2) & n_people(x2) & n_group(x1))