A group of people are taking part in a ceremony.
They are gathered for the same purpose.
You cant infer that theyre all there for the same purpose
exists e1 x1 x2 x3 x4.(in(e1,x4) & n_ceremony(x4) & Theme(e1,x3) & Actor(e1,x1) & v_take(e1) & n_part(x3) & of(x1,x2) & n_people(x2) & n_group(x1))
exists e1 s1 x1 x2.(n_purpose(x2) & a_same(s1) & Theme(s1,x2) & n_thing(x1) & for(e1,x2) & Theme(e1,x1) & v_gather(e1))