b-u bbb bbg bbh bbn bbo bbs bbu bgb bgg bgh bgn bgo bgs bgu bhb bhg bhh bho bhs bhu bnb bng bnn bno bns bnu bob bog boh bon boo bos bou bsb bsg bsh bsn bso bss bsu bub bug buh bun buo bus buu gbg gbh gbn gbo gbs gbu ggb ggg ggh ggn ggo ggs ggu ghb ghg ghh ghn gho ghs gnb gnn gno gns gnu gob gog goh gon goo gos gou gsb gsg gsn gso gss gsu gu- gub gug gun guo gus guu hbb hbg hbh hbn hbo hbs hbu hgb hgg hgh hgn hgo hgs hgu hhb hhg hhh hhn hho hhs hhu hnb hng hnh hnn hno hns hnu hob hog hoh hon hoo hos hou hsb hsg hsh hsn hss hsu hub hug huh hun huo hus huu nbb nbg nbn nbo nbs nbu ngb ngg ngh ngn ngo ngs ngu nhb nhg nhh nhn nhs nhu nnb nng nnh nnn nno nns nnu no- nob nog noh non noo nos nou nsb nsg nsh nsn nso nss nsu nub nug nuh nun nuo nus nuu ob- obb obg obh obn obo obs obu ogg ogh ogn ogo ogs ohg ohh ohn oho ohs ohu on- onb ong onh onn ono ons onu oo- oob oog ooh oon ooo oos os- osb osg osh osn oso oss osu ou- ouh oun ouo ous sbb sbg sbh sbn sbo sbs sbu sgb sgg sgh sgn sgo sgs sgu sh- shb shg shh shn sho shs shu snb sng snn sno sns snu sob sog soh son soo sos sou ss- ssb ssg ssh ssn sso sss ssu sub sug suh sun suo sus suu ubb ubg ubh ubn ubo ubs ubu ugb ugg ugh ugn ugo ugs ugu uhb uhh uho uhs uhu un- unb ung unh unn uno uns unu uob uog uon uoo uos usb usg ush usn uso uss usu uug uun uus uuu