C1b-C1y:*-C1a:C5a+N1b-C2y+N1x
C1c-C1d:*-C1a:C1c+C5a+O1a-C1c+C2y+O1a
C5a-C2y:O5a+*-*+N2x:C1b+C1c-C1y+C1d
N1a-N2x:*-C2y:C8y-C8y