C1b-C1x:O2b+*-*+C1z:C2b-C2y
C2b-C1y:*-C2y:C1b+C2c-C1x+C1y
C2b-C2y:*-C1y:C1b+C2c-C1x+C2y
C2b-C2y:*-C2y:C1b+C2c-C1x+C1c
C2b-C2y:*-C2y:C1b+C2c-C1x+C1z
C2c-C1c:*-*:C1a+C1a+C2b-C1a+C1a+C2y
C2c-C1y:*-*:C1a+C1b+C2b-C1a+C1x+C1y
C2c-C1z:*-C1x:C1a+C1b+C2b-C1a+C1x+C2y