A group of children is performing a concert outside.
A group of children is holding a concert in the auditorium.
Outside and auditorium are different.
exists e1 x1 x2 x3 x4.(Theme(e1,x3) & Actor(e1,x1) & v_perform(e1) & n_outside(x3) & of(x3,x4) & n_concert(x4) & of(x1,x2) & n_child(x2) & n_group(x1))
exists e1 x1 x2 x3 x4.(n_auditorium(x4) & in(e1,x4) & Theme(e1,x3) & Actor(e1,x1) & v_hold(e1) & n_concert(x3) & of(x1,x2) & n_child(x2) & n_group(x1))