bbb bbi bbm bbo bbs bbt bby bi- bib bii bim bio bis bit biy biz bmb bmi bmm bmo bms bmt bmz bob boi bom boo bos bot boy boz bsb bsi bsm bso bss bst bsy btb bti btm bto bts btt bty btz by- byi bym byo bys byt byz bzo bzs bzz ibb ibi ibm ibo ibs ibt iby ibz iib iii iim iio iis iit im- imb imi imm imo ims imt imy imz io- iob ioi iom ioo ios iot is- isb isi ism iso iss ist isy itb iti itm ito its itt ity itz iym iyo iys iyt iyy izi izm izo izy izz m-o mbb mbi mbm mbo mbs mbt mi- mib mii mim mio mis mit miy miz mmb mmi mmm mmo mms mmt mmz mob moi mom moo mos mot moy moz msb msi msm mso mss mst msy mtb mti mtm mto mts mtt my- myb mym myo mys myt mzb mzi mzm mzt o-i ob- obb obi obm obo obs obt oby oib oii oim oio ois oit oiz om- omb omi omm omo oms omt omy omz oo- oob ooi oom ooo oos oot os- osb osi osm oso oss ost ot- otb oti otm oto ots ott otz oyi oyo oys ozm ozo ozs ozt ozz sbb sbi sbm sbo sbs sbt sby sib sii sim sio sis sit smb smi smm smo sms smt smy smz sob soi som soo sos sot soy soz ss- ssb ssi ssm sso sss sst ssz stb sti stm sto sts stt sty stz sy- syb syi sym sys syt szi tbb tbi tbm tbo tbs tbt tbz tib tii tim tio tis tit tiy tiz tmb tmi tmm tmo tms tmt tmy tmz to- tob toi tom too tos tot toy toz tsb tsi tsm tso tss tst tsy ttb tti ttm tto tts ttt tty tym tyo tys tyt tzs ybi ybm ybs yby ybz yii yim yio yis yit yiz ymi ymm ymo yms ymt yob yoi yom yoo yos yot yoy ysb ysi ysm yso yss yst ysy ysz ytm yto yts ytt yyb yys yyt yyy yyz yzb yzy zbb zbm zbs zbt zby zib zim zio zis zit ziz zmb zmm zms zmt zo- zob zoi zom zoo zos zot zsi zsm zst zsz ztm zym zzs zzt zzy zzz