bbb bbi bbk bbm bbn bbo bbs bi- bib bii bik bim bin bio bis bkb bkk bkm bkn bko bks bmb bmi bmk bmm bmn bmo bms bnb bni bnk bnn bno bns bob boi bok bom bon boo bos bsb bsi bsk bsm bsn bso bss ibb ibi ibk ibm ibn ibo ibs iib iii iim iin iio iis ikb iki ikk iko iks im- imb imi imm imn imo ims in- inb ini ink inm inn ino ins io- iob ioi iom ion ioo ios is- isb isi isk ism isn iso iss kbb kbi kbk kbm kbn kbo kbs kib kii kik kim kin kio kis kkb kki kkk kkm kkn kks kmb kmi kmk kmm kmo kms kn- kni knk knm knn kno kob koi kok kom kon koo kos ksb ksi ksk ksm ksn kso kss m-o mbb mbi mbk mbm mbo mbs mi- mib mii mik mim min mio mis mkb mkk mkm mkn mko mks mmb mmi mmk mmm mmn mmo mms mnb mni mnk mnm mnn mno mns mob moi mok mom mon moo mos msb msi msk msm msn mso mss n-i nbb nbi nbk nbm nbn nbo nbs nib nii nik nim nin nio nis nki nkk nkm nkn nko nks nmb nmi nmk nmm nmn nmo nms nnb nni nnk nnm nnn nno nns no- nob noi nok nom non noo nos nsb nsi nsk nsm nsn nso nss o-i ob- obb obi obk obm obn obo obs oib oii oik oim oin oio ois okb oki okk oko oks om- omb omi omm omn omo oms on- onb oni onk onn ono ons oo- oob ooi ook oom oon ooo oos os- osb osi osk osm osn oso oss sbb sbi sbk sbm sbn sbo sbs sib sii sik sim sin sio sis sk- skb ski skk skm sko sks smb smi smk smm smn smo sms snb sni snk snm snn sno sns sob soi sok som son soo sos ss- ssb ssi ssk ssm ssn sso sss