-er a-a a-b a-i aaa aab aae aai aam aao aar aas aaw ab- aba abb abe abi abm abo abr abs abw aea aeb aee aei aem aeo aer aes aew ai- aia aib aie aii aim aio air ais aiw ama amb ame ami amm amo amr ams amw aoa aob aoe aoi aom aoo aor aos aow ar- ara arb are ari arm aro arr ars arw as- asa asb ase asi asm aso asr ass asw aw- awa awb awe awi awm awo awr aws aww baa bab bae bai bam bao bar bas baw bba bbb bbe bbi bbm bbo bbr bbs bbw be- bea beb bee bei bem beo ber bes bew bi- bia bib bie bii bim bio bir bis biw bma bmb bme bmi bmm bmo bmr bms bmw boa bob boe boi bom boo bor bos bow bra brb bre bri brm bro brr brs brw bsa bsb bse bsi bsm bso bsr bss bsw bwa bwb bwi bwo bwr bws eaa eab eae eai eam eao ear eas eaw eba ebb ebe ebi ebm ebo ebr ebs ebw eea eeb eee eem eeo eer ees eew eia eib eie eii eim eio eir eis em- ema emb eme emi emm emo emr ems emw eo- eoa eob eoe eoi eom eoo eor eos eow era erb ere eri erm ero err ers erw es- esa esb ese esi esm eso esr ess esw ewa ewb ewe ewi ewm ewo ewr ews eww ia- iaa iab iae iai iam iao iar ias iaw iba ibb ibe ibi ibm ibo ibr ibs ibw ie- iea iee iei iem ier ies iia iib iie iii iim iio iir iis iiw im- ima imb ime imi imm imo ims imw io- ioa iob ioe ioi iom ioo ior ios iow ir- ira irb ire iri irm iro irr irs is- isa isb ise isi ism iso isr iss isw iwa iwb iwe iwi iwm iwo iwr iws iww m-o m-r m-w maa mab mae mai mam mao mar mas maw mba mbb mbe mbi mbm mbo mbr mbs mbw mea meb mee mei mem meo mer mes mew mi- mia mib mie mii mim mio mir mis mma mmb mme mmi mmm mmo mmr mms mmw moa mob moe moi mom moo mor mos mow mra mrb mre mri mrm mro mrr mrs mrw msa msb mse msi msm mso msr mss msw mwa mwb mwe mwi mwm mwo mwr mws mww o-i oaa oab oae oai oam oao oar oas oaw ob- oba obb obe obi obm obo obr obs obw oea oeb oee oei oem oeo oer oes oia oib oie oii oim oio oir ois om- oma omb ome omi omm omo omr oms omw oo- ooa oob ooi oom ooo oor oos oow or- ora orb ore ori orm oro orr ors os- osa osb ose osi osm oso osr oss osw owa owb owe owi owm owo ows oww ra- raa rab rae rai ram rao rar ras raw rba rbb rbe rbi rbm rbo rbr rbs rbw re- rea reb ree rei rem reo rer res rew ria rib rie rii rim rio rir ris rma rmb rme rmi rmm rmo rmr rms roa rob roe roi rom roo ror ros row rra rrb rri rrm rrr rrs rsa rsb rse rsi rsm rso rsr rss rsw rwa rwb rwe rwi rwm rwr rws saa sab sae sai sam sao sar sas saw sba sbb sbe sbi sbm sbo sbr sbs sbw se- sea seb see sei sem seo ser ses sew sia sib sie sii sim sio sir sis siw sma smb sme smi smm smo smr sms smw soa sob soe soi som soo sor sos sow sr- sra srb sre sri srm sro srr srs srw ss- ssa ssb sse ssi ssm sso ssr sss ssw swa swb swe swi swm swo swr sws waa wab wae wai wam wao war was waw wba wbb wbe wbi wbo wbr wbs wbw wea web wee wei wem weo wer wes wew wia wib wie wii wim wir wis wm- wma wmb wme wmi wmm wmo wmr wms woa wob woe woi wom woo wor wos wow wr- wra wre wri wrm wro wrr wrs wrw wsa wsb wse wsi wsm wso wsr wss wsw wwa wwe wwi wwm wwo www