-er a-a a-c aaa aac aae aaf aam aao aar aas aau ac- aca acc ace acf acm aco acr acs acu aea aec aee aef aem aeo aer aes aeu af- afa afc afe aff afm afo afr afs afu ama amc ame amf amm amo amr ams amu aoa aoc aoe aof aom aoo aor aos aou ar- ara arc are arf arm aro arr ars aru as- asa asc ase asf asm aso asr ass asu au- aua auc aue auf aum auo aur aus c-- caa cac cae caf cam cao car cas cau cca ccc cce ccf ccm cco ccr ccs ccu ce- cea cec cee cef cem ceo cer ces ceu cfa cfc cfe cff cfm cfo cfr cfs cfu cma cmc cme cmf cmm cmo cmr cms cmu co- coa coc coe cof com coo cor cos cou cra crc cre crf crm cro crr crs cru csa csc cse csf csm cso csr css csu cua cuc cue cuf cum cuo cur cus cuu eaa eac eae eaf eam eao ear eas eau ec- eca ecc ece ecf ecm eco ecr ecs ecu eea eec eee eef eem eeo eer ees ef- efa efc efe eff efm efo efr efs em- ema emc eme emf emm emo emr ems emu eo- eoa eoc eoe eof eom eoo eor eos eou era erc ere erf erm ero err ers eru es- esa esc ese esf esm eso esr ess esu eu- eua euc eue euf eur eus faa fac fae faf fam fao far fas fau fca fcc fce fcf fcm fco fcr fcs fcu fea fec fee fef fem feo fer fes feu ffa ffc ffe fff ffm ffo ffr ffs ffu fma fmc fme fmf fmm fmo fmr fms fmu foa foc foe fof fom foo for fos fou fra frc fre frf frm fro frr frs fru fsa fsc fse fsf fsm fso fsr fss fsu fua fue fuf fum fuo fur fus fuu m-f m-o m-r maa mac mae maf mam mao mar mas mau mc- mca mcc mce mcf mcm mco mcr mcs mcu mea mec mee mef mem meo mer mes meu mfa mfc mfe mff mfm mfo mfr mfs mfu mma mmc mme mmf mmm mmo mmr mms mmu moa moc moe mof mom moo mor mos mou mra mrc mre mrf mrm mro mrr mrs mru msa msc mse msf msm mso msr mss msu mua muc mue muf mum mur mus muu oaa oac oae oaf oam oao oar oas oau oc- oca occ ocf ocm oco ocr ocs ocu oea oec oee oef oem oeo oer oes of- ofa ofc ofe off ofm ofo ofr ofs ofu om- oma omc ome omf omm omo omr oms omu oo- ooa ooc oof oom ooo oor oos or- ora orc ore orf orm oro orr ors oru os- osa osc ose osf osm oso osr oss osu ou- oua ouc oue ouf oum ouo our ous ra- raa rac rae raf ram rao rar ras rau rca rcc rce rcf rcm rco rcr rcs rcu re- rea rec ree ref rem reo rer res reu rfa rfc rfe rff rfm rfo rfr rfs rfu rma rmc rme rmf rmm rmo rmr rms roa roc roe rof rom roo ror ros rou rra rrc rrf rrm rrr rrs rru rsa rsc rse rsf rsm rso rsr rss rsu rua ruc rue ruf rum ruo rur rus ruu saa sac sae saf sam sao sar sas sau sca scc sce scf scm sco scr scs scu se- sea sec see sef sem seo ser ses seu sfa sfc sfe sff sfm sfo sfr sfs sfu sma smc sme smf smm smo smr sms smu soa soc soe sof som soo sor sos sou sr- sra src sre srf srm sro srr srs ss- ssa ssc sse ssf ssm sso ssr sss ssu sua suc sue suf sum suo sur sus suu ua- uaa uac uae uaf uam uao uar uas uau uca ucc uce ucf ucm uco ucr ucs ucu uea uec uee uef uem uer ues ufa ufc ufe uff ufm ufo ufr ufs ufu um- uma umc ume umf umm umo umr ums umu uoa uoc uoe uom uoo uor uos ur- ura urc ure urf urm uro urr urs uru usa usc use usf usm uso usr uss usu uua uuc uue uum uur uus uuu