A large group of people gathered outside.
They are having a family reunion.
People gathered does not imply a family reunion.
exists e1 s1 s2 x1 x2 x3.(a_topic(x1) & of(x1,x2) & a_outside(s2) & Manner(e1,s2) & Theme(e1,x3) & v_gather(e1) & (x2 = x3) & n_people(x2) & n_group(x1) & a_large(s1) & Theme(s1,x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_reunion(x2) & of(x2,x1) & n_family(x1) & n_thing(x1))