-er -th a-a a-b a-i a-t aaa aab aae aah aai aao aar aas aat ab- aba abb abe abh abi abo abr abs abt aea aeb aee aeh aei aeo aer aes aet aha ahb ahe ahh ahi aho ahr ahs aht ai- aia aib aie aih aii aio air ais ait aoa aob aoe aoh aoi aoo aor aos aot ar- ara arb are arh ari aro arr ars art as- asa asb ase ash asi aso asr ass ast at- ata atb ate ath ati ato atr ats att baa bab bae bah bai bao bar bas bat bba bbb bbe bbh bbi bbo bbr bbs bbt be- bea beb bee beh bei beo ber bes bet bha bhb bhe bhh bhi bho bhr bhs bht bi- bia bib bie bih bii bio bir bis bit boa bob boe boh boi boo bor bos bot bra brb bre brh bri bro brr brs brt bsa bsb bse bsh bsi bso bsr bss bst bta btb bte bth bti bto btr bts btt eaa eab eae eah eai eao ear eas eat eba ebb ebe ebh ebi ebo ebr ebs ebt eea eeb eee eeo eer ees eet eha ehb ehe ehh ehi eho ehr ehs eht eia eib eie eii eio eir eis eit eo- eoa eob eoe eoh eoi eoo eor eos eot era erb ere erh eri ero err ers ert es- esa esb ese esh esi eso esr ess est eta etb ete eth eti eto etr ets ett h-i haa hab hae hah hai hao har has hat hba hbb hbe hbh hbi hbo hbr hbs hbt he- hea heb hee heh hei heo her hes het hha hhb hhe hhh hhi hho hhr hhs hht hia hib hie hih hii hio hir his hit hoa hob hoe hoh hoi hoo hor hos hot hr- hra hrb hre hrh hri hro hrr hrs hrt hsa hsb hse hsh hsi hsr hss hst hta htb hte hth hti hto htr hts htt ia- iaa iab iae iah iai iao iar ias iat iba ibb ibe ibh ibi ibo ibr ibs ibt ie- iea iee iei ier ies iet iha ihb ihe ihh ihi iho ihr ihs iht iia iib iie iih iii iio iir iis iit io- ioa iob ioe ioh ioi ioo ior ios iot ir- ira irb ire iri iro irr irs irt is- isa isb ise ish isi iso isr iss ist ita itb ite ith iti ito its itt o-i oaa oab oae oah oai oao oar oas oat ob- oba obb obe obh obi obo obr obs obt oea oeb oee oeh oei oeo oer oes oet oha ohe ohh ohi oho ohr ohs oht oia oib oie oii oio oir ois oit oo- ooa oob ooh ooi ooo oor oos oot or- ora orb ore orh ori oro orr ors ort os- osa osb ose osh osi oso osr oss ost ot- ota otb ote oth oti oto otr ots ott ra- raa rab rae rah rai rao rar ras rat rba rbb rbe rbh rbi rbo rbr rbs rbt re- rea reb ree reh rei reo rer res ret rh- rha rhb rhe rhh rhi rho rhr rhs rht ria rib rie rih rii rio rir ris rit roa rob roe roh roi roo ror ros rot rra rrb rrh rri rrr rrs rrt rsa rsb rse rsh rsi rso rsr rss rst rta rtb rte rti rto rtr rts rtt saa sab sae sah sai sao sar sas sat sba sbb sbe sbh sbi sbo sbr sbs sbt se- sea seb see seh sei seo ser ses set sh- sha shb she shh shi sho shr shs sht sia sib sie sih sii sio sir sis sit soa sob soe soh soi soo sor sos sot sr- sra srb sre srh sri sro srr srs srt ss- ssa ssb sse ssh ssi sso ssr sss sst sta stb ste sth sti sto str sts stt taa tab tae tah tai tao tar tas tat tba tbb tbe tbh tbi tbo tbr tbs tbt te- tea teb tee teh tei teo ter tes tet th- tha thb the thh thi tho thr ths tht tia tib tie tih tii tio tir tis tit to- toa tob toe toh toi too tor tos tot tra trb tre trh tri tro trr trs trt tsa tsb tse tsh tsi tso tsr tss tst tta ttb tte tth tti tto ttr tts ttt