People from an African tribe are gathered outside.
African people are performing a ritual outside
African people are not always an African tribe. Just because they are gathered outside does not mean they are always performing a ritual.
exists e1 s1 s2 x1 x2.(a_outside(s2) & Manner(e1,s2) & Theme(e1,x1) & v_gather(e1) & from(x1,x2) & n_tribe(x2) & a_african(s1) & Theme(s1,x2) & n_people(x1))
exists e1 s1 s2 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_perform(e1) & n_outside(x2) & a_ritual(s2) & Theme(s2,x2) & n_people(x1) & a_african(s1) & Theme(s1,x1))