-th a-a a-b a-i a-t aaa aab aag aah aai aar aat aau ab- aba abb abg abh abi abr abt abu ag- aga agb agg agh agi agr agt agu aha ahb ahg ahh ahi ahr aht ahu ai- aia aib aig aih aii air ait aiu ar- ara arb arg arh ari arr art aru at- ata atb atg ath ati atr att atu au- aua aub aug auh aui aur aut b-u baa bab bag bah bai bar bat bau bba bbb bbg bbh bbi bbr bbt bbu bga bgb bgg bgh bgi bgr bgt bgu bha bhb bhg bhh bhi bhr bht bhu bi- bia bib big bih bii bir bit biu bra brb brg brh bri brr brt bru bta btb btg bth bti btr btt btu bua bub bug buh bui bur but buu gaa gab gag gah gai gar gat gau gba gbg gbh gbi gbr gbt gbu gga ggb ggg ggh ggi ggr ggt ggu gha ghb ghg ghh ghi ghr ght gia gib gig gih gii gir git giu gra grb grg grh gri grr grt gru gta gtb gtg gth gti gtr gtt gtu gu- gua gub gug gui gur gut guu h-i haa hab hag hah hai har hat hau hba hbb hbg hbh hbi hbr hbt hbu hga hgb hgg hgh hgi hgr hgt hgu hha hhb hhg hhh hhi hhr hht hhu hia hib hig hih hii hir hit hiu hr- hra hrb hrg hrh hri hrr hrt hru hta htb htg hth hti htr htt hua hub hug huh hui hur hut huu ia- iaa iab iag iah iai iar iat iau iba ibb ibg ibh ibi ibr ibt ibu iga igb igg igh igi igr igt igu iha ihb ihg ihh ihi ihr iht ihu iia iib iih iii iir iit iiu ir- ira irb irg iri irr irt iru ita itb itg ith iti itt itu iu- iua iub iug iui iur iut ra- raa rab rag rah rai rar rat rau rba rbb rbg rbh rbi rbr rbt rbu rga rgb rgg rgh rgi rgr rgt rh- rha rhb rhg rhh rhi rhr rht rhu ria rib rig rih rii rir rit rra rrb rrg rrh rri rrr rrt rru rta rtb rtg rti rtr rtt rtu rua rub rug ruh rui rur rut ruu taa tab tag tah tai tar tat tau tba tbb tbg tbh tbi tbr tbt tbu tga tgb tgg tgh tgi tgr tgt tgu th- tha thb thg thh thi thr tht thu tia tib tig tih tii tir tit tiu tra trb trg trh tri trr trt tru tta ttb ttg tth tti ttr ttt ttu tua tub tug tuh tui tur tut tuu ua- uaa uab uag uah uai uar uat uau uba ubb ubg ubh ubi ubr ubt ubu uga ugb ugg ugh ugi ugr ugt ugu uha uhb uhh uhi uhr uht uhu uia uib uig uii uir uit uiu ur- ura urb urg uri urr urt uru uta utb uth uti utr utt utu uua uug uur uut uuu