bbb bbd bbi bbm bbs bby bdb bdd bdi bdm bds bdy bi- bib bid bii bim bis biy bmb bmd bmi bmm bms bsb bsd bsi bsm bss bsy by- byd byi bym bys dbb dbd dbi dbm dbs dby ddb ddd ddi ddm dds ddy di- dib did dii dim dis diy dmb dmd dmi dmm dms dsb dsd dsi dsm dss dsy dy- dyb dyd dym dys dyy i-d ibb ibd ibi ibm ibs iby idb idd idi idm ids idy iib iid iii iim iis im- imb imd imi imm ims imy is- isb isd isi ism iss isy iym iys iyy mbb mbd mbi mbm mbs mdb mdd mdi mdm mds mdy mi- mib mid mii mim mis miy mmb mmd mmi mmm mms msb msd msi msm mss msy my- myb myd mym mys sbb sbd sbi sbm sbs sby sdb sdd sdi sdm sds sdy sib sid sii sim sis smb smd smi smm sms smy ss- ssb ssd ssi ssm sss sy- syb syd syi sym sys ybi ybm ybs yby yds ydy yid yii yim yis ymi ymm yms ysb ysi ysm yss ysy yyb yys yyy