A band performs on stage under a blue light.
A band is performing for a large audience.
We don't know that there is a large audience.
exists e1 s1 x1 x2 x3.(under(e1,x3) & n_light(x3) & a_blue(s1) & Theme(s1,x3) & on(e1,x2) & n_stage(x2) & Actor(e1,x1) & v_perform(e1) & n_band(x1))
exists e1 s1 x1 x2.(for(e1,x2) & n_audience(x2) & a_large(s1) & Theme(s1,x2) & Actor(e1,x1) & v_perform(e1) & n_band(x1))