A band performs in front of a graffiti wall.
A band is playing a concert in an indoor theater.
A graffiti wall is not an indoor theater.
exists e1 x1 x2 x3 x4.(in(e1,x2) & of(x2,x3) & n_wall(x3) & of(x3,x4) & n_graffitus(x4) & n_front(x2) & Actor(e1,x1) & v_perform(e1) & n_band(x1))
exists e1 s1 x1 x2 x3.(in(e1,x3) & n_theater(x3) & a_indoor(s1) & Theme(s1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_concert(x2) & n_band(x1))