a-a a-b aaa aab aag aan aao aas aau aay ab- aba abb abg abn abo abs abu aby ag- aga agb agg agn ago ags agu agy an- ana anb ang ann ano ans anu any aoa aob aog aon aoo aos aou as- asa asb asg asn aso ass asu asy au- aua aub aug aun auo aus ay- aya ayn ayo ays ayu b-u baa bab bag ban bao bas bau bay bba bbb bbg bbn bbo bbs bbu bby bga bgb bgg bgn bgo bgs bgu bna bnb bng bnn bno bns bnu boa bob bog bon boo bos bou boy bsa bsb bsg bsn bso bss bsu bsy bua bub bug bun buo bus buu buy by- bya byg byn byo bys byu gaa gab gag gan gao gas gau gay gba gbg gbn gbo gbs gbu gby gga ggb ggg ggn ggo ggs ggu gna gnb gnn gno gns gnu goa gob gog gon goo gos gou goy gsa gsb gsg gsn gso gss gsu gu- gua gub gug gun guo gus guu guy gy- gya gyb gyn gyo gys naa nab nag nan nao nas nau nay nba nbb nbg nbn nbo nbs nbu nga ngb ngg ngn ngo ngs ngu nna nnb nng nnn nno nns nnu no- noa nob nog non noo nos nou noy nsa nsb nsg nsn nso nss nsu nsy nua nub nug nun nuo nus nuu nuy nya nyg nyn nyo nys nyu nyy oaa oab oag oan oao oas oau ob- oba obb obg obn obo obs obu oby oga ogg ogn ogo ogs ogy on- ona onb ong onn ono ons onu ony oo- ooa oob oog oon ooo oos os- osa osb osg osn oso oss osu ou- oua oun ouo ous oya oyo oys saa sab sag san sao sas sau say sba sbb sbg sbn sbo sbs sbu sby sga sgb sgg sgn sgo sgs sgu sna snb sng snn sno sns snu sny soa sob sog son soo sos sou soy ss- ssa ssb ssg ssn sso sss ssu sua sub sug sun suo sus suu suy sy- sya syb syg syn sys syu ua- uaa uab uag uan uao uas uau uay uba ubb ubg ubn ubo ubs ubu uby uga ugb ugg ugn ugo ugs ugu un- una unb ung unn uno uns unu uny uoa uob uog uon uoo uos usa usb usg usn uso uss usu uua uug uun uus uuu uyo uys uyu yaa yab yag yan yao yas yau yay ybg ybs yby yga ygo yna yng ynn yns ynu yny yob yog yon yoo yos you yoy ysa ysb ysg yso yss ysu ysy yua yug yun yuo yus yuu yuy yyb yyg yys yyu yyy