-th a-a a-b a-c a-t aaa aab aac aah aao aar aas aat aau ab- aba abb abc abh abo abr abs abt abu ac- aca acb acc ach aco acr acs act acu aha ahb ahc ahh aho ahr ahs aht ahu aoa aob aoc aoh aoo aor aos aot aou ar- ara arb arc arh aro arr ars art aru as- asa asb asc ash aso asr ass ast asu at- ata atb atc ath ato atr ats att atu au- aua aub auc auh auo aur aus aut b-u baa bab bac bah bao bar bas bat bau bba bbb bbc bbh bbo bbr bbs bbt bbu bca bcb bcc bch bco bcr bcs bct bcu bha bhb bhc bhh bho bhr bhs bht bhu boa bob boc boh boo bor bos bot bou bra brb brh bro brr brs brt bru bsa bsb bsc bsh bso bsr bss bst bsu bta btb btc bth bto btr bts btt btu bua bub buc buh buo bur bus but buu c-- caa cab cac cah cao car cas cat cau cba cbb cbc cbh cbo cbr cbs cbt cbu cca ccb ccc cch cco ccr ccs cct ccu ch- cha chb chc chh cho chr chs cht chu co- coa cob coc coh coo cor cos cot cou cra crb crc crh cro crr crs crt cru csa csb csc csh cso csr css cst csu cta ctb ctc cth cto ctr cts ctt ctu cua cub cuc cuh cuo cur cus cut cuu haa hab hac hah hao har has hat hau hba hbb hbc hbh hbo hbr hbs hbt hbu hca hcb hcc hch hco hcr hcs hct hha hhb hhc hhh hho hhr hhs hht hhu hoa hob hoc hoh hoo hor hos hot hou hr- hra hrb hrc hrh hro hrr hrs hrt hru hsa hsb hsc hsh hsr hss hst hsu hta htb htc hth hto htr hts htt hua hub huc huh huo hur hus hut huu oaa oab oac oah oao oar oas oat oau ob- oba obb obc obh obo obr obs obt obu oc- oca ocb occ och oco ocr ocs oct ocu oha ohc ohh oho ohr ohs oht ohu oo- ooa oob ooc ooh ooo oor oos oot or- ora orb orc orh oro orr ors ort oru os- osa osb osc osh oso osr oss ost osu ot- ota otb otc oth oto otr ots ott otu ou- oua ouc ouh ouo our ous out ra- raa rab rac rah rao rar ras rat rau rba rbb rbc rbh rbo rbr rbs rbt rbu rca rcb rcc rch rco rcr rcs rct rcu rh- rha rhb rhc rhh rho rhr rhs rht rhu roa rob roc roh roo ror ros rot rou rra rrb rrc rrh rrr rrs rrt rru rsa rsb rsc rsh rso rsr rss rst rsu rta rtb rtc rto rtr rts rtt rtu rua rub ruc ruh ruo rur rus rut ruu saa sab sac sah sao sar sas sat sau sba sbb sbc sbh sbo sbr sbs sbt sbu sca scb scc sch sco scr scs sct scu sh- sha shb shc shh sho shr shs sht shu soa sob soc soh soo sor sos sot sou sr- sra srb src srh sro srr srs srt ss- ssa ssb ssc ssh sso ssr sss sst ssu sta stb stc sth sto str sts stt stu sua sub suc suh suo sur sus sut suu taa tab tac tah tao tar tas tat tau tba tbb tbc tbh tbo tbr tbs tbt tbu tca tcb tcc tch tco tcr tcs tct tcu th- tha thb thc thh tho thr ths tht thu to- toa tob toc toh too tor tos tot tou tra trb trc trh tro trr trs trt tru tsa tsb tsc tsh tso tsr tss tst tsu tta ttb ttc tth tto ttr tts ttt ttu tua tub tuc tuh tuo tur tus tut tuu ua- uaa uab uac uah uao uar uas uat uau uba ubb ubc ubh ubo ubr ubs ubt ubu uca ucb ucc uch uco ucr ucs uct ucu uha uhb uhc uhh uho uhr uhs uht uhu uoa uob uoc uoo uor uos uot ur- ura urb urc uro urr urs urt uru usa usb usc ush uso usr uss ust usu uta utb utc uth uto utr uts utt utu uua uuc uur uus uut uuu

-hou -ous a-ha aaaa aaab aaac aaah aaar aaas aaba aabb aabc aabh aabt aaca aacb aacc aach aaco aacr aacs aact aacu aaha aahs aaoo aara aarc aaro aars aart aaru aasa aasc aass aast aasu aata aatc aatt aaus abaa abab abac abar abas abat abau abb- abba abbb abbo abbr abbs abbt abca abcb abcc abch abcr abcs abct abha abho abhr abhs aboa abob aboh aboo abor abos abot abou abra abrc abro abrs abs- absa abss absu abta abts abtu abua abus abut ac-t acaa acab acac acar acas acat acba acca accc acch acco accs acct accu acha achh acho achr achs acht achu acoa acoh acor acos acot acou acr- acra acrc acro acrr acrs acsa acsc acss acst acta actc acth acto acts actt actu acu- acuo acur acus acut ahab ahac ahah ahar ahas ahat ahau ahha ahhs ahoa ahor ahot ahra ahrc ahrr ahrs ahsa ahso ahss ahta ahto ahts ahua ahus aoah aoba aoca aocs aora aorb aors aort aoss aotc aous aout arab arac arah arar aras arat arau arba arbh arbs arc- arca arch arco arcs arct arh- arhs aroa arob aroo aror aros arr- arra arrc arrh arro arrr arrs arrt arru ars- arsa arsc arso arst arsu arta artc arth arto artr arts arua arub arut asaa asab asac asah asao asar asas asat asau asba asbo asbu asc- asca ascb ascc asch asco ascr asct asha ashs asht ashu asob asoc asor asos asot asou asra asrc asro asrs asru assa