-ic bbb bbc bbi bbm bbn bbo bbs bbt bby bcb bcc bci bcm bcn bco bcs bct bcy bi- bib bic bii bim bin bio bis bit biy bmb bmc bmi bmm bmn bmo bms bmt bnb bnc bni bnn bno bns bnt bob boc boi bom bon boo bos bot boy bsb bsc bsi bsm bsn bso bss bst bsy btb btc bti btm btn bto bts btt bty by- byc byi bym byn byo bys byt c-- cbb cbc cbi cbm cbn cbo cbs cbt cby ccb ccc cci ccm ccn cco ccs cct ci- cib cic cii cim cin cio cis cit cmb cmc cmi cmm cmn cmo cms cmt cmy cn- cnb cnc cni cnm cnn cno cns cnt cny co- cob coc coi com con coo cos cot coy csb csc csi csm csn cso css cst csy ctb ctc cti ctm ctn cto cts ctt cty cyb cyc cym cyn cyo cys cyt ibb ibc ibi ibm ibn ibo ibs ibt iby icb icc ici icm icn ico ics ict icy iib iic iii iim iin iio iis iit im- imb imc imi imm imn imo ims imt imy in- inb inc ini inm inn ino ins int iny io- iob ioc ioi iom ion ioo ios iot is- isb isc isi ism isn iso iss ist isy itb itc iti itm itn ito its itt ity iyc iym iyo iys iyt iyy m-o mbb mbc mbi mbm mbo mbs mbt mc- mcb mcc mci mcm mcn mco mcs mct mi- mib mic mii mim min mio mis mit miy mmb mmc mmi mmm mmn mmo mms mmt mnb mnc mni mnm mnn mno mns mnt mob moc moi mom mon moo mos mot moy msb msc msi msm msn mso mss mst msy mtb mtc mti mtm mtn mto mts mtt my- myb myc mym myn myo mys myt n-i nbb nbc nbi nbm nbn nbo nbs nbt ncb ncc nci ncm ncn nco ncs nct nib nic nii nim nin nio nis nit nmb nmc nmi nmm nmn nmo nms nmt nnb nnc nni nnm nnn nno nns nnt no- nob noc noi nom non noo nos not noy nsb nsc nsi nsm nsn nso nss nst nsy ntb ntc nti ntm ntn nto nts ntt nyc nym nyn nyo nys nyt nyy o-i ob- obb obc obi obm obn obo obs obt oby oc- ocb occ oci ocm ocn oco ocs oct oib oic oii oim oin oio ois oit om- omb omc omi omm omn omo oms omt omy on- onb onc oni onn ono ons ont ony oo- oob ooc ooi oom oon ooo oos oot os- osb osc osi osm osn oso oss ost ot- otb otc oti otm otn oto ots ott oyi oyo oys sbb sbc sbi sbm sbn sbo sbs sbt sby scb scc sci scm scn sco scs sct sib sic sii sim sin sio sis sit smb smc smi smm smn smo sms smt smy snb snc sni snm snn sno sns snt sny sob soc soi som son soo sos sot soy ss- ssb ssc ssi ssm ssn sso sss sst stb stc sti stm stn sto sts stt sty sy- syb syc syi sym syn sys syt tbb tbc tbi tbm tbn tbo tbs tbt tcb tcc tci tcm tcn tco tcs tct tib tic tii tim tin tio tis tit tiy tmb tmc tmi tmm tmn tmo tms tmt tmy tnb tnc tni tnm tnn tno tns tnt to- tob toc toi tom ton too tos tot toy tsb tsc tsi tsm tsn tso tss tst tsy ttb ttc tti ttm ttn tto tts ttt tty tyc tym tyn tyo tys tyt ybc ybi ybm ybs yby ycc yci yco ycs ycy yii yim yin yio yis yit ymc ymi ymm ymo yms ymt ynn yns yny yob yoc yoi yom yon yoo yos yot yoy ysb ysc ysi ysm yso yss yst ysy ytc ytm ytn yto yts ytt yyb yyc yys yyt yyy