-er -th a-a a-b a-c a-t aaa aab aac aae aah aan aar aat aau ab- aba abb abc abe abh abn abr abt abu ac- aca acb acc ace ach acn acr act acu aea aeb aec aee aeh aen aer aet aeu aha ahb ahc ahe ahh ahn ahr aht ahu an- ana anb anc ane anh ann anr ant anu ar- ara arb arc are arh arn arr art aru at- ata atb atc ate ath atn atr att atu au- aua aub auc aue auh aun aur aut b-u baa bab bac bae bah ban bar bat bau bba bbb bbc bbe bbh bbn bbr bbt bbu bca bcb bcc bce bch bcn bcr bct bcu be- bea beb bec bee beh ben ber bet beu bha bhb bhc bhe bhh bhr bht bhu bna bnb bnc bne bnn bnr bnt bnu bra brb bre brh brn brr brt bru bta btb btc bte bth btn btr btt btu bua bub buc bue buh bun bur but buu c-- caa cab cac cae cah can car cat cau cba cbb cbc cbe cbh cbn cbr cbt cbu cca ccb ccc cce cch ccn ccr cct ccu ce- cea ceb cec cee ceh cen cer cet ceu ch- cha chb chc che chh chn chr cht chu cn- cna cnb cnc cne cnh cnn cnr cnt cnu cra crb crc cre crh crn crr crt cru cta ctb ctc cte cth ctn ctr ctt ctu cua cub cuc cue cuh cun cur cut cuu eaa eab eac eae eah ean ear eat eau eba ebb ebc ebe ebh ebn ebr ebt ebu ec- eca ecb ecc ece ech ecn ecr ect ecu eea eeb eec eee een eer eet eha ehb ehc ehe ehh ehn ehr eht ehu en- ena enb enc ene enh enn enr ent enu era erb erc ere erh ern err ert eru eta etb etc ete eth etn etr ett etu eu- eua eub euc eue eun eur eut haa hab hac hae hah han har hat hau hba hbb hbc hbe hbh hbn hbr hbt hbu hca hcb hcc hce hch hcn hcr hct he- hea heb hec hee heh hen her het heu hha hhb hhc hhe hhh hhn hhr hht hhu hna hnb hnc hne hnh hnn hnt hnu hr- hra hrb hrc hre hrh hrn hrr hrt hru hta htb htc hte hth htn htr htt hua hub huc hue huh hun hur hut huu naa nab nac nae nah nan nar nat nau nba nbb nbc nbe nbn nbr nbt nbu nca ncb ncc nce nch ncn ncr nct ncu ne- nea neb nec nee neh nen ner net neu nha nhb nhc nhe nhh nhn nhr nht nhu nna nnb nnc nne nnh nnn nnt nnu nra nrb nrc nre nrn nrr nrt nru nta ntb ntc nte nth ntn ntr ntt ntu nua nub nuc nue nuh nun nur nut nuu ra- raa rab rac rae rah ran rar rat rau rba rbb rbc rbe rbh rbn rbr rbt rbu rca rcb rcc rce rch rcn rcr rct rcu re- rea reb rec ree reh ren rer ret reu rh- rha rhb rhc rhe rhh rhn rhr rht rhu rna rnb rnc rnh rnn rnr rnt rnu rra rrb rrc rrh rrn rrr rrt rru rta rtb rtc rte rtn rtr rtt rtu rua rub ruc rue ruh run rur rut ruu taa tab tac tae tah tan tar tat tau tba tbb tbc tbe tbh tbn tbr tbt tbu tca tcb tcc tce tch tcn tcr tct tcu te- tea teb tec tee teh ten ter tet teu th- tha thb thc the thh thn thr tht thu tna tnb tnc tne tnh tnn tnr tnt tra trb trc tre trh trn trr trt tru tta ttb ttc tte tth ttn ttr ttt ttu tua tub tuc tue tuh tun tur tut tuu ua- uaa uab uac uae uah uan uar uat uau uba ubb ubc ube ubh ubn ubr ubt ubu uca ucb ucc uce uch ucn ucr uct ucu uea ueb uec uee ueh uen uer uet uha uhb uhc uhe uhh uhr uht uhu un- una unb unc une unh unn unr unt unu ur- ura urb urc ure urn urr urt uru uta utb utc ute uth utn utr utt utu uua uuc uue uun uur uut uuu