People in a dance
The people are doing a African dance.
An African dance is a type of dance.
exists x1 x2.(a_topic(x1) & in(x1,x2) & n_dance(x2) & n_people(x1))
exists e1 s1 x1 x2.(n_people(x1) & Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_dance(x2) & a_african(s1) & Theme(s1,x2))