bbb bbi bbk bbm bbn bbo bbs bbt bi- bib bii bik bim bin bio bis bit bkb bkk bkm bkn bko bks bkt bmb bmi bmk bmm bmn bmo bms bmt bnb bni bnk bnn bno bns bnt bob boi bok bom bon boo bos bot bsb bsi bsk bsm bsn bso bss bst btb bti btk btm btn bto bts btt ibb ibi ibk ibm ibn ibo ibs ibt iib iii iim iin iio iis iit ikb iki ikk iko iks ikt im- imb imi imm imn imo ims imt in- inb ini ink inm inn ino ins int io- iob ioi iom ion ioo ios iot is- isb isi isk ism isn iso iss ist itb iti itk itm itn ito its itt k-t kbb kbi kbk kbm kbn kbo kbs kib kii kik kim kin kio kis kit kkb kki kkk kkm kkn kks kkt kmb kmi kmk kmm kmo kms kmt kn- kni knk knm knn kno knt kob koi kok kom kon koo kos kot ksb ksi ksk ksm ksn kso kss kst ktb ktk ktm ktn kto kts ktt m-o mbb mbi mbk mbm mbo mbs mbt mi- mib mii mik mim min mio mis mit mkb mkk mkm mkn mko mks mkt mmb mmi mmk mmm mmn mmo mms mmt mnb mni mnk mnm mnn mno mns mnt mob moi mok mom mon moo mos mot msb msi msk msm msn mso mss mst mtb mti mtk mtm mtn mto mts mtt n-i nbb nbi nbk nbm nbn nbo nbs nbt nib nii nik nim nin nio nis nit nki nkk nkm nkn nko nks nkt nmb nmi nmk nmm nmn nmo nms nmt nnb nni nnk nnm nnn nno nns nnt no- nob noi nok nom non noo nos not nsb nsi nsk nsm nsn nso nss nst ntb nti ntk ntm ntn nto nts ntt o-i ob- obb obi obk obm obn obo obs obt oib oii oik oim oin oio ois oit okb oki okk oko oks om- omb omi omm omn omo oms omt on- onb oni onk onn ono ons ont oo- oob ooi ook oom oon ooo oos oot os- osb osi osk osm osn oso oss ost ot- otb oti otk otm otn oto ots ott sbb sbi sbk sbm sbn sbo sbs sbt sib sii sik sim sin sio sis sit sk- skb ski skk skm sko sks skt smb smi smk smm smn smo sms smt snb sni snk snm snn sno sns snt sob soi sok som son soo sos sot ss- ssb ssi ssk ssm ssn sso sss sst stb sti stk stm stn sto sts stt tbb tbi tbk tbm tbn tbo tbs tbt tib tii tik tim tin tio tis tit tkb tkk tkm tko tks tkt tmb tmi tmk tmm tmn tmo tms tmt tnb tni tnk tnm tnn tno tns tnt to- tob toi tok tom ton too tos tot tsb tsi tsk tsm tsn tso tss tst ttb tti ttk ttm ttn tto tts ttt