BB_PATH_C
BB_PATH_AC = (BB_PATH_A | BB_PATH_C),
BB_PATH_BC = (BB_PATH_B | BB_PATH_C),
BB_PATH_CD = (BB_PATH_C | BB_PATH_D),
BB_PATH_ABC = (BB_PATH_A | BB_PATH_B | BB_PATH_C),
BB_PATH_ACD = (BB_PATH_A | BB_PATH_C | BB_PATH_D),
BB_PATH_BCD = (BB_PATH_B | BB_PATH_C | BB_PATH_D),
BB_PATH_ABCD = (BB_PATH_A | BB_PATH_B | BB_PATH_C | BB_PATH_D),