A Native American Performance is put on for spectators.
An American Indian performance.
There is American performance in both contexts.
exists e1 s1 s2 x1 x2.(r_on(e1) & for(e1,x2) & n_spectator(x2) & Theme(e1,x1) & v_put(e1) & n_performance(x1) & a_american(s2) & Theme(s2,x1) & a_native(s1) & Theme(s1,x1))
exists s1 s2 x1.(a_topic(x1) & n_performance(x1) & a_indian(s2) & Theme(s2,x1) & a_american(s1) & Theme(s1,x1))