b-u bbb bbe bbk bbm bbn bbo bbu be- beb bee bek bem ben beo beu bkb bke bkk bkm bkn bko bmb bme bmk bmm bmn bmo bmu bnb bne bnk bnn bno bnu bob boe bok bom bon boo bou bub bue buk bum bun buo buu ebb ebe ebk ebm ebn ebo ebu eeb eee eek eem een eeo ekb eke eko eku em- emb eme emk emm emn emo emu en- enb ene enk enm enn eno enu eo- eob eoe eok eom eon eoo eou eu- eub eue eun kbb kbe kbk kbm kbn kbo kbu ke- keb kee kek kem ken keo kkb kke kkk kkm kkn kku kmb kme kmk kmm kmo kmu kn- kne knk knm knn kno knu kob koe kok kom kon koo kou kub kue kuk kum kun kuu m-o mbb mbe mbk mbm mbo mbu meb mee mek mem men meo meu mkb mke mkk mkm mkn mko mku mmb mme mmk mmm mmn mmo mmu mnb mne mnk mnm mnn mno mnu mob moe mok mom mon moo mou mub mue muk mum mun muu nbb nbe nbk nbm nbn nbo nbu ne- neb nee nek nem nen neo neu nke nkk nkm nkn nko nku nmb nme nmk nmm nmn nmo nmu nnb nne nnk nnm nnn nno nnu no- nob noe nok nom non noo nou nub nue nuk num nun nuo nuu ob- obb obe obk obm obn obo obu oeb oee oem oen oeo okb oke okk oko oku om- omb ome omm omn omo omu on- onb one onk onn ono onu oo- oob ook oom oon ooo ou- oue ouk oum oun ouo ubb ube ubk ubn ubo ubu ueb uee uem uen ukb uke ukk ukn uku um- umb ume umm umn umo umu un- unb une unk unm unn uno unu uob uoe uok uom uon uoo uue uum uun uuu