b-u bbb bbg bbn bbo bbs bbu bgb bgg bgn bgo bgs bgu bnb bng bnn bno bns bnu bob bog bon boo bos bou bsb bsg bsn bso bss bsu bub bug bun buo bus buu gbg gbn gbo gbs gbu ggb ggg ggn ggo ggs ggu gnb gnn gno gns gnu gob gog gon goo gos gou gsb gsg gsn gso gss gsu gu- gub gug gun guo gus guu nbb nbg nbn nbo nbs nbu ngb ngg ngn ngo ngs ngu nnb nng nnn nno nns nnu no- nob nog non noo nos nou nsb nsg nsn nso nss nsu nub nug nun nuo nus nuu ob- obb obg obn obo obs obu ogg ogn ogo ogs on- onb ong onn ono ons onu oo- oob oog oon ooo oos os- osb osg osn oso oss osu ou- oun ouo ous sbb sbg sbn sbo sbs sbu sgb sgg sgn sgo sgs sgu snb sng snn sno sns snu sob sog son soo sos sou ss- ssb ssg ssn sso sss ssu sub sug sun suo sus suu ubb ubg ubn ubo ubs ubu ugb ugg ugn ugo ugs ugu un- unb ung unn uno uns unu uob uog uon uoo uos usb usg usn uso uss usu uug uun uus uuu