b-u bbb bbg bbm bbn bbo bbs bbu bgb bgg bgm bgn bgo bgs bgu bmb bmg bmm bmn bmo bms bmu bnb bng bnn bno bns bnu bob bog bom bon boo bos bou bsb bsg bsm bsn bso bss bsu bub bug bum bun buo bus buu gbg gbm gbn gbo gbs gbu ggb ggg ggm ggn ggo ggs ggu gmb gmg gmm gmn gmo gms gnb gnm gnn gno gns gnu gob gog gom gon goo gos gou gsb gsg gsm gsn gso gss gsu gu- gub gug gum gun guo gus guu m-o mbb mbg mbm mbo mbs mbu mgb mgm mgn mgo mgs mgu mmb mmg mmm mmn mmo mms mmu mnb mng mnm mnn mno mns mnu mob mog mom mon moo mos mou msb msg msm msn mso mss msu mub mug mum mun mus muu nbb nbg nbm nbn nbo nbs nbu ngb ngg ngm ngn ngo ngs ngu nmb nmg nmm nmn nmo nms nmu nnb nng nnm nnn nno nns nnu no- nob nog nom non noo nos nou nsb nsg nsm nsn nso nss nsu nub nug num nun nuo nus nuu ob- obb obg obm obn obo obs obu ogg ogn ogo ogs om- omb omg omm omn omo oms omu on- onb ong onn ono ons onu oo- oob oog oom oon ooo oos os- osb osg osm osn oso oss osu ou- oum oun ouo ous sbb sbg sbm sbn sbo sbs sbu sgb sgg sgm sgn sgo sgs sgu smb smg smm smn smo sms smu snb sng snm snn sno sns snu sob sog som son soo sos sou ss- ssb ssg ssm ssn sso sss ssu sub sug sum sun suo sus suu ubb ubg ubn ubo ubs ubu ugb ugg ugm ugn ugo ugs ugu um- umb umg umm umn umo ums umu un- unb ung unm unn uno uns unu uob uog uom uon uoo uos usb usg usm usn uso uss usu uug uum uun uus uuu