-er a-a a-b a-i aaa aab aae aag aah aai aao aar aas ab- aba abb abe abg abh abi abo abr abs aea aeb aee aeg aeh aei aeo aer aes ag- aga agb age agg agh agi ago agr ags aha ahb ahe ahg ahh ahi aho ahr ahs ai- aia aib aie aig aih aii aio air ais aoa aob aoe aog aoh aoi aoo aor aos ar- ara arb are arg arh ari aro arr ars as- asa asb ase asg ash asi aso asr ass baa bab bae bag bah bai bao bar bas bba bbb bbe bbg bbh bbi bbo bbr bbs be- bea beb bee beg beh bei beo ber bes bga bgb bge bgg bgh bgi bgo bgr bgs bha bhb bhe bhg bhh bhi bho bhr bhs bi- bia bib bie big bih bii bio bir bis boa bob boe bog boh boi boo bor bos bra brb bre brg brh bri bro brr brs bsa bsb bse bsg bsh bsi bso bsr bss eaa eab eae eag eah eai eao ear eas eba ebb ebe ebg ebh ebi ebo ebr ebs eea eeb eee eeg eeo eer ees ega egb ege egg egh egi ego egr egs eha ehb ehe ehg ehh ehi eho ehr ehs eia eib eie eig eii eio eir eis eo- eoa eob eoe eog eoh eoi eoo eor eos era erb ere erg erh eri ero err ers es- esa esb ese esg esh esi eso esr ess gaa gab gae gag gah gai gao gar gas gba gbe gbg gbh gbi gbo gbr gbs ge- gea geb gee geg geh gei geo ger ges gga ggb ggg ggh ggi ggo ggr ggs gha ghb ghe ghg ghh ghi gho ghr ghs gia gib gie gig gih gii gio gir gis goa gob goe gog goh goi goo gor gos gra grb gre grg grh gri gro grr grs gsa gsb gse gsg gsi gso gsr gss h-i haa hab hae hag hah hai hao har has hba hbb hbe hbg hbh hbi hbo hbr hbs he- hea heb hee heg heh hei heo her hes hga hgb hge hgg hgh hgi hgo hgr hgs hha hhb hhe hhg hhh hhi hho hhr hhs hia hib hie hig hih hii hio hir his hoa hob hoe hog hoh hoi hoo hor hos hr- hra hrb hre hrg hrh hri hro hrr hrs hsa hsb hse hsg hsh hsi hsr hss ia- iaa iab iae iag iah iai iao iar ias iba ibb ibe ibg ibh ibi ibo ibr ibs ie- iea iee ieg iei ier ies iga igb ige igg igh igi igo igr igs iha ihb ihe ihg ihh ihi iho ihr ihs iia iib iie iih iii iio iir iis io- ioa iob ioe iog ioh ioi ioo ior ios ir- ira irb ire irg iri iro irr irs is- isa isb ise isg ish isi iso isr iss o-i oaa oab oae oag oah oai oao oar oas ob- oba obb obe obg obh obi obo obr obs oea oeb oee oeg oeh oei oeo oer oes oga oge ogg ogh ogi ogo ogs oha ohe ohg ohh ohi oho ohr ohs oia oib oie oii oio oir ois oo- ooa oob oog ooh ooi ooo oor oos or- ora orb ore org orh ori oro orr ors os- osa osb ose osg osh osi oso osr oss ra- raa rab rae rag rah rai rao rar ras rba rbb rbe rbg rbh rbi rbo rbr rbs re- rea reb ree reg reh rei reo rer res rga rgb rge rgg rgh rgi rgo rgr rgs rh- rha rhb rhe rhg rhh rhi rho rhr rhs ria rib rie rig rih rii rio rir ris roa rob roe rog roh roi roo ror ros rra rrb rrg rrh rri rrr rrs rsa rsb rse rsg rsh rsi rso rsr rss saa sab sae sag sah sai sao sar sas sba sbb sbe sbg sbh sbi sbo sbr sbs se- sea seb see seg seh sei seo ser ses sga sgb sge sgg sgh sgi sgo sgr sgs sh- sha shb she shg shh shi sho shr shs sia sib sie sig sih sii sio sir sis soa sob soe sog soh soi soo sor sos sr- sra srb sre srg srh sri sro srr srs ss- ssa ssb sse ssg ssh ssi sso ssr sss