-er -ic a-a a-c a-i aaa aac aae aaf aag aai aao aar aas aau aax ac- aca acc ace acf acg aci aco acr acs acu acx aea aec aee aef aeg aei aeo aer aes aeu aex af- afa afc afe aff afg afi afo afr afs afu afx ag- aga agc age agf agg agi ago agr ags agu agx ai- aia aic aie aif aig aii aio air ais aiu aix aoa aoc aoe aof aog aoi aoo aor aos aou aox ar- ara arc are arf arg ari aro arr ars aru arx as- asa asc ase asf asg asi aso asr ass asu asx au- aua auc aue auf aug aui auo aur aus aux ax- axa axe axi axo axr axs axx c-- caa cac cae caf cag cai cao car cas cau cax cca ccc cce ccf ccg cci cco ccr ccs ccu ccx ce- cea cec cee cef ceg cei ceo cer ces ceu cex cfa cfc cfe cff cfg cfi cfo cfr cfs cfu cfx cga cgc cge cgg cgi cgo cgr cgs cgu ci- cia cic cie cif cig cii cio cir cis ciu cix co- coa coc coe cof cog coi coo cor cos cou cox cra crc cre crf crg cri cro crr crs cru crx csa csc cse csf csg csi cso csr css csu csx cua cuc cue cuf cug cui cuo cur cus cuu cxc cxf cxi cxo cxr cxs cxx eaa eac eae eaf eag eai eao ear eas eau eax ec- eca ecc ece ecf ecg eci eco ecr ecs ecu ecx eea eec eee eef eeg eeo eer ees eex ef- efa efc efe eff efg efi efo efr efs efx ega egc ege egf egg egi ego egr egs egu egx eia eic eie eif eig eii eio eir eis eiu eix eo- eoa eoc eoe eof eog eoi eoo eor eos eou era erc ere erf erg eri ero err ers eru es- esa esc ese esf esg esi eso esr ess esu esx eu- eua euc eue euf eug eui eur eus eux ex- exa exc exe exi exo exr exs exu exx faa fac fae faf fag fai fao far fas fau fax fca fcc fce fcf fcg fci fco fcr fcs fcu fcx fea fec fee fef feg fei feo fer fes feu fex ffa ffc ffe fff ffg ffi ffo ffr ffs ffu ffx fga fgc fge fgf fgg fgi fgr fgs fia fic fie fif fig fii fir fis fiu fix foa foc foe fof fog foi foo for fos fou fox fra frc fre frf frg fri fro frr frs fru fsa fsc fse fsf fsg fsi fso fsr fss fsu fsx fua fue fuf fug fui fuo fur fus fuu fux fxe fxg fxi fxr fxs fxu fxx gaa gac gae gaf gag gai gao gar gas gau gca gcc gce gcf gcg gci gco gcr gcs gcu ge- gea gec gee gef geg gei geo ger ges geu gex gfa gfc gfe gff gfi gfo gfr gfs gfx gga ggc ggg ggi ggo ggr ggs ggu gia gic gie gif gig gii gio gir gis giu goa goc goe gof gog goi goo gor gos gou gox gra grc gre grf grg gri gro grr grs gru grx gsa gsc gse gsf gsg gsi gso gsr gss gsu gsx gu- gua guc gue guf gug gui guo gur gus guu gxa gxf gxs i-f ia- iaa iac iae iaf iag iai iao iar ias iau ica icc ice icf icg ici ico icr ics icu ie- iea iec iee ief ieg iei ier ies iex ifa ifc ife iff ifg ifi ifo ifr ifs ifu ifx iga igc ige igf igg igi igo igr igs igu iia iic iie iif iii iio iir iis iiu iix io- ioa ioc ioe iof iog ioi ioo ior ios iou ir- ira irc ire irf irg iri iro irr irs iru irx is- isa isc ise isf isg isi iso isr iss isu iu- iua iuc iue iug iui iur ius ixc ixe ixi o-i oaa oac oae oaf oag oai oao oar oas oau oax oc- oca occ ocf ocg oci oco ocr ocs ocu ocx oea oec oee oef oeg oei oeo oer oes oex of- ofa ofc ofe off ofg ofi ofo ofr ofs ofu ofx oga ogc oge ogf ogg ogi ogo ogs ogx oia oic oie oif oii oio oir ois oiu oo- ooa ooc oof oog ooi ooo oor oos oox or- ora orc ore orf org ori oro orr ors oru orx os- osa osc ose osf osg osi oso osr oss osu osx ou- oua ouc oue ouf oui ouo our ous ox- oxa oxc oxf oxi oxo oxx ra- raa rac rae raf rag rai rao rar ras rau rax rca rcc rce rcf rcg rci rco rcr rcs rcu rcx re- rea rec ree ref reg rei reo rer res reu rex rfa rfc rfe rff rfg rfi rfo rfr rfs rfu rga rgc rge rgf rgg rgi rgo rgr rgs rgx ria ric rie rif rig rii rio rir ris rix roa roc roe rof rog roi roo ror ros rou rox rra rrc rrf rrg rri rrr rrs rru rsa rsc rse rsf rsg rsi rso rsr rss rsu rsx rua ruc rue ruf rug rui ruo rur rus ruu rux rxr rxs saa sac sae saf sag sai sao sar sas sau sax sca scc sce scf scg sci sco scr scs scu scx se- sea sec see sef seg sei seo ser ses seu sex sfa sfc sfe sff sfg sfi sfo sfr sfs sfu sfx sga sgc sge sgf sgg sgi sgo sgr sgs sgu sgx sia sic sie sif sig sii sio sir sis siu six soa soc soe sof sog soi soo sor sos sou sox sr- sra src sre srf srg sri sro srr srs srx