a-a a-b a-c aaa aab aac aag aah aao aar aas aau ab- aba abb abc abg abh abo abr abs abu ac- aca acb acc acg ach aco acr acs acu ag- aga agb agc agg agh ago agr ags agu aha ahb ahc ahg ahh aho ahr ahs ahu aoa aob aoc aog aoh aoo aor aos aou ar- ara arb arc arg arh aro arr ars aru as- asa asb asc asg ash aso asr ass asu au- aua aub auc aug auh auo aur aus b-u baa bab bac bag bah bao bar bas bau bba bbb bbc bbg bbh bbo bbr bbs bbu bca bcb bcc bcg bch bco bcr bcs bcu bga bgb bgc bgg bgh bgo bgr bgs bgu bha bhb bhc bhg bhh bho bhr bhs bhu boa bob boc bog boh boo bor bos bou bra brb brg brh bro brr brs bru bsa bsb bsc bsg bsh bso bsr bss bsu bua bub buc bug buh buo bur bus buu c-- caa cab cac cag cah cao car cas cau cba cbb cbc cbg cbh cbo cbr cbs cbu cca ccb ccc ccg cch cco ccr ccs ccu cga cgb cgc cgg cgh cgo cgr cgs cgu ch- cha chb chc chg chh cho chr chs chu co- coa cob coc cog coh coo cor cos cou cra crb crc crg crh cro crr crs cru csa csb csc csg csh cso csr css csu cua cub cuc cug cuh cuo cur cus cuu gaa gab gac gag gah gao gar gas gau gba gbc gbg gbh gbo gbr gbs gbu gca gcb gcc gcg gch gco gcr gcs gcu gga ggb ggc ggg ggh ggo ggr ggs ggu gha ghb ghc ghg ghh gho ghr ghs goa gob goc gog goh goo gor gos gou gra grb grc grg grh gro grr grs gru gsa gsb gsc gsg gso gsr gss gsu gu- gua gub guc gug guo gur gus guu haa hab hac hag hah hao har has hau hba hbb hbc hbg hbh hbo hbr hbs hbu hca hcb hcc hcg hch hco hcr hcs hga hgb hgc hgg hgh hgo hgr hgs hgu hha hhb hhc hhg hhh hho hhr hhs hhu hoa hob hoc hog hoh hoo hor hos hou hr- hra hrb hrc hrg hrh hro hrr hrs hru hsa hsb hsc hsg hsh hsr hss hsu hua hub huc hug huh huo hur hus huu oaa oab oac oag oah oao oar oas oau ob- oba obb obc obg obh obo obr obs obu oc- oca ocb occ ocg och oco ocr ocs ocu oga ogc ogg ogh ogo ogs oha ohc ohg ohh oho ohr ohs ohu oo- ooa oob ooc oog ooh ooo oor oos or- ora orb orc org orh oro orr ors oru os- osa osb osc osg osh oso osr oss osu ou- oua ouc ouh ouo our ous ra- raa rab rac rag rah rao rar ras rau rba rbb rbc rbg rbh rbo rbr rbs rbu rca rcb rcc rcg rch rco rcr rcs rcu rga rgb rgc rgg rgh rgo rgr rgs rh- rha rhb rhc rhg rhh rho rhr rhs rhu roa rob roc rog roh roo ror ros rou rra rrb rrc rrg rrh rrr rrs rru rsa rsb rsc rsg rsh rso rsr rss rsu rua rub ruc rug ruh ruo rur rus ruu saa sab sac sag sah sao sar sas sau sba sbb sbc sbg sbh sbo sbr sbs sbu sca scb scc scg sch sco scr scs scu sga sgb sgc sgg sgh sgo sgr sgs sgu sh- sha shb shc shg shh sho shr shs shu soa sob soc sog soh soo sor sos sou sr- sra srb src srg srh sro srr srs ss- ssa ssb ssc ssg ssh sso ssr sss ssu sua sub suc sug suh suo sur sus suu ua- uaa uab uac uag uah uao uar uas uau uba ubb ubc ubg ubh ubo ubr ubs ubu uca ucb ucc ucg uch uco ucr ucs ucu uga ugb ugc ugg ugh ugo ugr ugs ugu uha uhb uhc uhh uho uhr uhs uhu uoa uob uoc uog uoo uor uos ur- ura urb urc urg uro urr urs uru usa usb usc usg ush uso usr uss usu uua uuc uug uur uus uuu

-hou -ous a-ha aaaa aaab aaac aaah aaar aaas aaba aabb aabc aabh aaca aacb aacc aach aaco aacr aacs aacu aagh aaha aahs aaoo aara aarc aaro aars aaru aasa aasc aass aasu aaus abaa abab abac abag abar abas abau abb- abba abbb abbo abbr abbs abca abcb abcc abch abcr abcs abha abho abhr abhs aboa abob aboh aboo abor abos abou abra abrc abro abrs abs- absa abss absu abua abug abus acaa acab acac acag acar acas acba acca accc acch acco accs accu acga acgr acgs acha achh acho achr achs achu acoa acog acoh acor acos acou acr- acra acrc acro acrr acrs acsa acsc acss acu- acuo acur acus ag-o agac agag agao agar agas agau agba agbo agca agcc agco agga aggu agha aghs agob agog agoo agos agou agra agro agsa agsg agsu agua agur agus ahab ahac ahah ahar ahas ahau ahha ahhs ahoa ahog ahor ahra ahrc ahrr ahrs ahsa ahso ahss ahua ahug ahus aoah aoba aoca aocs aora aorb aors aoss aous arab arac arag arah arar aras arau arba arbh arbs arc- arca arch arco arcs arga argb argh argo args arh- arhs aroa arob aroo aror aros arr- arra arrc arrg arrh arro arrr arrs arru ars- arsa arsc arso arsu arua arub arug asaa asab asac asag asah asao asar asas asau asba asbo asbu asc- asca ascb ascc asch asco ascr asha ashs ashu asob asoc asog asor asos asou asra asrc asrg asro asrs asru assa assc assh asso assr asss assu asub asur asus auaa auca auch auga augs