A band plays a concert for fans.
Famous people perform for charity
Just because a band plays a concert for fans doesn't mean they perform for charity
exists e1 x1 x2 x3.(for(e1,x3) & n_fan(x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_concert(x2) & n_band(x1))
exists e1 s1 x1 x2.(for(e1,x2) & n_charity(x2) & Actor(e1,x1) & v_perform(e1) & n_people(x1) & a_famous(s1) & Theme(s1,x1))