Singer performing on stage with acoustics
A person dancing on stage
Performing with acoustics and dancing are separate artistic performances.
exists e1 x1 x2 x3.(ne_nam_singer(x1) & with(e1,x3) & n_acoustic(x3) & on(e1,x2) & n_stage(x2) & Actor(e1,x1) & v_perform(e1))
exists e1 x1 x2 x3.(a_topic(x1) & on(e1,x3) & n_stage(x3) & Actor(e1,x2) & v_dance(e1) & (x1 = x2) & n_person(x1))