-er -ic a-a a-c a-i a-t aaa aac aae aag aai aao aar aas aat aav ac- aca acc ace acg aci aco acr acs act acv aea aec aee aeg aei aeo aer aes aet aev ag- aga agc age agg agi ago agr ags agt agv ai- aia aic aie aig aii aio air ais ait aiv aoa aoc aoe aog aoi aoo aor aos aot aov ar- ara arc are arg ari aro arr ars art arv as- asa asc ase asg asi aso asr ass ast asv at- ata atc ate atg ati ato atr ats att atv av- ava avc ave avg avi avo avr avs avt c-- caa cac cae cag cai cao car cas cat cav cca ccc cce ccg cci cco ccr ccs cct ccv ce- cea cec cee ceg cei ceo cer ces cet cev cga cgc cge cgg cgi cgo cgr cgs cgt cgv ci- cia cic cie cig cii cio cir cis cit civ co- coa coc coe cog coi coo cor cos cot cov cra crc cre crg cri cro crr crs crt crv csa csc cse csg csi cso csr css cst csv cta ctc cte ctg cti cto ctr cts ctt ctv cva cvc cve cvg cvi cvo cvr cvs cvt cvv eaa eac eae eag eai eao ear eas eat eav ec- eca ecc ece ecg eci eco ecr ecs ect ecv eea eec eee eeg eeo eer ees eet eev ega egc ege egg egi ego egr egs egt eia eic eie eig eii eio eir eis eit eiv eo- eoa eoc eoe eog eoi eoo eor eos eot era erc ere erg eri ero err ers ert erv es- esa esc ese esg esi eso esr ess est esv eta etc ete etg eti eto etr ets ett etv eva evc eve evg evi evo evr evs evt evv gaa gac gae gag gai gao gar gas gat gav gca gcc gce gcg gci gco gcr gcs gct ge- gea gec gee geg gei geo ger ges get gev gga ggc ggg ggi ggo ggr ggs ggt ggv gia gic gie gig gii gio gir gis git giv goa goc goe gog goi goo gor gos got gov gra grc gre grg gri gro grr grs grt grv gsa gsc gse gsg gsi gso gsr gss gst gsv gta gtc gte gtg gti gto gtr gts gtt gtv gva gvc gve gvg gvi gvo gvr gvs gvt i-v ia- iaa iac iae iag iai iao iar ias iat iav ica icc ice icg ici ico icr ics ict icv ie- iea iec iee ieg iei ier ies iet iev iga igc ige igg igi igo igr igs igt iia iic iie iii iio iir iis iit io- ioa ioc ioe iog ioi ioo ior ios iot iov ir- ira irc ire irg iri iro irr irs irt irv is- isa isc ise isg isi iso isr iss ist isv ita itc ite itg iti ito its itt itv iva ivc ive ivg ivi ivo ivr ivs ivt ivv o-i oaa oac oae oag oai oao oar oas oat oav oc- oca occ ocg oci oco ocr ocs oct ocv oea oec oee oeg oei oeo oer oes oet oga ogc oge ogg ogi ogo ogs ogt oia oic oie oii oio oir ois oit oiv oo- ooa ooc oog ooi ooo oor oos oot oov or- ora orc ore org ori oro orr ors ort orv os- osa osc ose osg osi oso osr oss ost osv ot- ota otc ote otg oti oto otr ots ott otv ov- ova ovc ove ovi ovo ovs ovv ra- raa rac rae rag rai rao rar ras rat rav rca rcc rce rcg rci rco rcr rcs rct rcv re- rea rec ree reg rei reo rer res ret rev rga rgc rge rgg rgi rgo rgr rgs rgt rgv ria ric rie rig rii rio rir ris rit riv roa roc roe rog roi roo ror ros rot rov rra rrc rrg rri rrr rrs rrt rsa rsc rse rsg rsi rso rsr rss rst rsv rta rtc rte rtg rti rto rtr rts rtt rtv rva rvc rve rvg rvi rvo rvr rvs rvt rvv saa sac sae sag sai sao sar sas sat sav sca scc sce scg sci sco scr scs sct scv se- sea sec see seg sei seo ser ses set sev sga sgc sge sgg sgi sgo sgr sgs sgt sgv sia sic sie sig sii sio sir sis sit siv soa soc soe sog soi soo sor sos sot sov sr- sra src sre srg sri sro srr srs srt srv ss- ssa ssc sse ssg ssi sso ssr sss sst ssv sta stc ste stg sti sto str sts stt stv sva svc sve svg svi svo svr svs svt svv taa tac tae tag tai tao tar tas tat tav tca tcc tce tcg tci tco tcr tcs tct tcv te- tea tec tee teg tei teo ter tes tet tev tga tgc tge tgg tgi tgo tgr tgs tgt tgv tia tic tie tig tii tio tir tis tit tiv to- toa toc toe tog toi too tor tos tot tov tra trc tre trg tri tro trr trs trt trv tsa tsc tse tsg tsi tso tsr tss tst tsv tta ttc tte ttg tti tto ttr tts ttt ttv tva tvc tve tvg tvi tvo tvr tvs tvt v-a v-e vaa vac vae vag vai vao var vas vat vav vca vcc vce vci vco vcr vcs vct vea vec vee veg vei veo ver ves vet vga vgc vgg vgo vgr vgs vgt vi- via vic vie vig vii vio vir vis vit viv voa voc voe vog voi voo vor vos vot vov vra vrc vre vrg vri vrr vrs vrt vsa vsc vse vsg vsi vso vsr vss vst vsv vta vtc vte vtg vti vto vtr vts vtt