-er -th a-a a-b a-c a-t aaa aab aac aae aah aar aas aat aau ab- aba abb abc abe abh abr abs abt abu ac- aca acb acc ace ach acr acs act acu aea aeb aec aee aeh aer aes aet aeu aha ahb ahc ahe ahh ahr ahs aht ahu ar- ara arb arc are arh arr ars art aru as- asa asb asc ase ash asr ass ast asu at- ata atb atc ate ath atr ats att atu au- aua aub auc aue auh aur aus aut b-u baa bab bac bae bah bar bas bat bau bba bbb bbc bbe bbh bbr bbs bbt bbu bca bcb bcc bce bch bcr bcs bct bcu be- bea beb bec bee beh ber bes bet beu bha bhb bhc bhe bhh bhr bhs bht bhu bra brb bre brh brr brs brt bru bsa bsb bsc bse bsh bsr bss bst bsu bta btb btc bte bth btr bts btt btu bua bub buc bue buh bur bus but buu c-- caa cab cac cae cah car cas cat cau cba cbb cbc cbe cbh cbr cbs cbt cbu cca ccb ccc cce cch ccr ccs cct ccu ce- cea ceb cec cee ceh cer ces cet ceu ch- cha chb chc che chh chr chs cht chu cra crb crc cre crh crr crs crt cru csa csb csc cse csh csr css cst csu cta ctb ctc cte cth ctr cts ctt ctu cua cub cuc cue cuh cur cus cut cuu eaa eab eac eae eah ear eas eat eau eba ebb ebc ebe ebh ebr ebs ebt ebu ec- eca ecb ecc ece ech ecr ecs ect ecu eea eeb eec eee eer ees eet eha ehb ehc ehe ehh ehr ehs eht ehu era erb erc ere erh err ers ert eru es- esa esb esc ese esh esr ess est esu eta etb etc ete eth etr ets ett etu eu- eua eub euc eue eur eus eut haa hab hac hae hah har has hat hau hba hbb hbc hbe hbh hbr hbs hbt hbu hca hcb hcc hce hch hcr hcs hct he- hea heb hec hee heh her hes het heu hha hhb hhc hhe hhh hhr hhs hht hhu hr- hra hrb hrc hre hrh hrr hrs hrt hru hsa hsb hsc hse hsh hsr hss hst hsu hta htb htc hte hth htr hts htt hua hub huc hue huh hur hus hut huu ra- raa rab rac rae rah rar ras rat rau rba rbb rbc rbe rbh rbr rbs rbt rbu rca rcb rcc rce rch rcr rcs rct rcu re- rea reb rec ree reh rer res ret reu rh- rha rhb rhc rhe rhh rhr rhs rht rhu rra rrb rrc rrh rrr rrs rrt rru rsa rsb rsc rse rsh rsr rss rst rsu rta rtb rtc rte rtr rts rtt rtu rua rub ruc rue ruh rur rus rut ruu saa sab sac sae sah sar sas sat sau sba sbb sbc sbe sbh sbr sbs sbt sbu sca scb scc sce sch scr scs sct scu se- sea seb sec see seh ser ses set seu sh- sha shb shc she shh shr shs sht shu sr- sra srb src sre srh srr srs srt ss- ssa ssb ssc sse ssh ssr sss sst ssu sta stb stc ste sth str sts stt stu sua sub suc sue suh sur sus sut suu taa tab tac tae tah tar tas tat tau tba tbb tbc tbe tbh tbr tbs tbt tbu tca tcb tcc tce tch tcr tcs tct tcu te- tea teb tec tee teh ter tes tet teu th- tha thb thc the thh thr ths tht thu tra trb trc tre trh trr trs trt tru tsa tsb tsc tse tsh tsr tss tst tsu tta ttb ttc tte tth ttr tts ttt ttu tua tub tuc tue tuh tur tus tut tuu ua- uaa uab uac uae uah uar uas uat uau uba ubb ubc ube ubh ubr ubs ubt ubu uca ucb ucc uce uch ucr ucs uct ucu uea ueb uec uee ueh uer ues uet uha uhb uhc uhe uhh uhr uhs uht uhu ur- ura urb urc ure urr urs urt uru usa usb usc use ush usr uss ust usu uta utb utc ute uth utr uts utt utu uua uuc uue uur uus uut uuu