p - f - a - O - [qp] a s f s a p a s f s a [ep] a s f s a p a s f s a [0p] a s f s a p a s f s a [qp] a s f s a p a s f s a [qp] a s f s a p a s f s a [ep] a s f s a p a s f s a [0p] a s f s a p a s f s a [qp] a s f s a p a s f s a [qp] a s f s a [tp] a s f s a [6p] a s f s a [0p] a s f s a [0p] a s f s a [rp] a s f s a [qp] a s f s a [tp] a s f s a [qp] a s f s a [tp] a s f s a [6p] a s f s a [0p] a s f s a [0p] a s f s a [rp] a s f s a [qp] a s f s a [tp] a s f s a [ij] k l x l k [sj] k l x l k [ej] k l x l k [uj] k l x l k [uj] k l x l k [aj] k l x l k [ij] k l x l k [sj] k l x l k [ij] k l x l k [sj] k l x l k [ej] k l x l k [uj] k l x l k [uj] k l x l k [aj] k l x z l [iz] x H--- p s f j l x b