-er -th a-a a-b a-i a-t aaa aab aae aag aah aai aar aas aat ab- aba abb abe abg abh abi abr abs abt aea aeb aee aeg aeh aei aer aes aet ag- aga agb age agg agh agi agr ags agt aha ahb ahe ahg ahh ahi ahr ahs aht ai- aia aib aie aig aih aii air ais ait ar- ara arb are arg arh ari arr ars art as- asa asb ase asg ash asi asr ass ast at- ata atb ate atg ath ati atr ats att baa bab bae bag bah bai bar bas bat bba bbb bbe bbg bbh bbi bbr bbs bbt be- bea beb bee beg beh bei ber bes bet bga bgb bge bgg bgh bgi bgr bgs bgt bha bhb bhe bhg bhh bhi bhr bhs bht bi- bia bib bie big bih bii bir bis bit bra brb bre brg brh bri brr brs brt bsa bsb bse bsg bsh bsi bsr bss bst bta btb bte btg bth bti btr bts btt eaa eab eae eag eah eai ear eas eat eba ebb ebe ebg ebh ebi ebr ebs ebt eea eeb eee eeg eer ees eet ega egb ege egg egh egi egr egs egt eha ehb ehe ehg ehh ehi ehr ehs eht eia eib eie eig eii eir eis eit era erb ere erg erh eri err ers ert es- esa esb ese esg esh esi esr ess est eta etb ete etg eth eti etr ets ett gaa gab gae gag gah gai gar gas gat gba gbe gbg gbh gbi gbr gbs gbt ge- gea geb gee geg geh gei ger ges get gga ggb ggg ggh ggi ggr ggs ggt gha ghb ghe ghg ghh ghi ghr ghs ght gia gib gie gig gih gii gir gis git gra grb gre grg grh gri grr grs grt gsa gsb gse gsg gsi gsr gss gst gta gtb gte gtg gth gti gtr gts gtt h-i haa hab hae hag hah hai har has hat hba hbb hbe hbg hbh hbi hbr hbs hbt he- hea heb hee heg heh hei her hes het hga hgb hge hgg hgh hgi hgr hgs hgt hha hhb hhe hhg hhh hhi hhr hhs hht hia hib hie hig hih hii hir his hit hr- hra hrb hre hrg hrh hri hrr hrs hrt hsa hsb hse hsg hsh hsi hsr hss hst hta htb hte htg hth hti htr hts htt ia- iaa iab iae iag iah iai iar ias iat iba ibb ibe ibg ibh ibi ibr ibs ibt ie- iea iee ieg iei ier ies iet iga igb ige igg igh igi igr igs igt iha ihb ihe ihg ihh ihi ihr ihs iht iia iib iie iih iii iir iis iit ir- ira irb ire irg iri irr irs irt is- isa isb ise isg ish isi isr iss ist ita itb ite itg ith iti its itt ra- raa rab rae rag rah rai rar ras rat rba rbb rbe rbg rbh rbi rbr rbs rbt re- rea reb ree reg reh rei rer res ret rga rgb rge rgg rgh rgi rgr rgs rgt rh- rha rhb rhe rhg rhh rhi rhr rhs rht ria rib rie rig rih rii rir ris rit rra rrb rrg rrh rri rrr rrs rrt rsa rsb rse rsg rsh rsi rsr rss rst rta rtb rte rtg rti rtr rts rtt saa sab sae sag sah sai sar sas sat sba sbb sbe sbg sbh sbi sbr sbs sbt se- sea seb see seg seh sei ser ses set sga sgb sge sgg sgh sgi sgr sgs sgt sh- sha shb she shg shh shi shr shs sht sia sib sie sig sih sii sir sis sit sr- sra srb sre srg srh sri srr srs srt ss- ssa ssb sse ssg ssh ssi ssr sss sst sta stb ste stg sth sti str sts stt taa tab tae tag tah tai tar tas tat tba tbb tbe tbg tbh tbi tbr tbs tbt te- tea teb tee teg teh tei ter tes tet tga tgb tge tgg tgh tgi tgr tgs tgt th- tha thb the thg thh thi thr ths tht tia tib tie tig tih tii tir tis tit tra trb tre trg trh tri trr trs trt tsa tsb tse tsg tsh tsi tsr tss tst tta ttb tte ttg tth tti ttr tts ttt