-er -ic -th a-a a-c a-i a-t aaa aac aae aag aah aai aao aar aas aat ac- aca acc ace acg ach aci aco acr acs act aea aec aee aeg aeh aei aeo aer aes aet ag- aga agc age agg agh agi ago agr ags agt aha ahc ahe ahg ahh ahi aho ahr ahs aht ai- aia aic aie aig aih aii aio air ais ait aoa aoc aoe aog aoh aoi aoo aor aos aot ar- ara arc are arg arh ari aro arr ars art as- asa asc ase asg ash asi aso asr ass ast at- ata atc ate atg ath ati ato atr ats att c-- caa cac cae cag cah cai cao car cas cat cca ccc cce ccg cch cci cco ccr ccs cct ce- cea cec cee ceg ceh cei ceo cer ces cet cga cgc cge cgg cgh cgi cgo cgr cgs cgt ch- cha chc che chg chh chi cho chr chs cht ci- cia cic cie cig cih cii cio cir cis cit co- coa coc coe cog coh coi coo cor cos cot cra crc cre crg crh cri cro crr crs crt csa csc cse csg csh csi cso csr css cst cta ctc cte ctg cth cti cto ctr cts ctt eaa eac eae eag eah eai eao ear eas eat ec- eca ecc ece ecg ech eci eco ecr ecs ect eea eec eee eeg eeo eer ees eet ega egc ege egg egh egi ego egr egs egt eha ehc ehe ehg ehh ehi eho ehr ehs eht eia eic eie eig eii eio eir eis eit eo- eoa eoc eoe eog eoh eoi eoo eor eos eot era erc ere erg erh eri ero err ers ert es- esa esc ese esg esh esi eso esr ess est eta etc ete etg eth eti eto etr ets ett gaa gac gae gag gah gai gao gar gas gat gca gcc gce gcg gch gci gco gcr gcs gct ge- gea gec gee geg geh gei geo ger ges get gga ggc ggg ggh ggi ggo ggr ggs ggt gha ghc ghe ghg ghh ghi gho ghr ghs ght gia gic gie gig gih gii gio gir gis git goa goc goe gog goh goi goo gor gos got gra grc gre grg grh gri gro grr grs grt gsa gsc gse gsg gsi gso gsr gss gst gta gtc gte gtg gth gti gto gtr gts gtt h-i haa hac hae hag hah hai hao har has hat hca hcc hce hcg hch hci hco hcr hcs hct he- hea hec hee heg heh hei heo her hes het hga hgc hge hgg hgh hgi hgo hgr hgs hgt hha hhc hhe hhg hhh hhi hho hhr hhs hht hia hic hie hig hih hii hio hir his hit hoa hoc hoe hog hoh hoi hoo hor hos hot hr- hra hrc hre hrg hrh hri hro hrr hrs hrt hsa hsc hse hsg hsh hsi hsr hss hst hta htc hte htg hth hti hto htr hts htt ia- iaa iac iae iag iah iai iao iar ias iat ica icc ice icg ich ici ico icr ics ict ie- iea iec iee ieg iei ier ies iet iga igc ige igg igh igi igo igr igs igt iha ihc ihe ihg ihh ihi iho ihr ihs iht iia iic iie iih iii iio iir iis iit io- ioa ioc ioe iog ioh ioi ioo ior ios iot ir- ira irc ire irg iri iro irr irs irt is- isa isc ise isg ish isi iso isr iss ist ita itc ite itg ith iti ito its itt o-i oaa oac oae oag oah oai oao oar oas oat oc- oca occ ocg och oci oco ocr ocs oct oea oec oee oeg oeh oei oeo oer oes oet oga ogc oge ogg ogh ogi ogo ogs ogt oha ohc ohe ohg ohh ohi oho ohr ohs oht oia oic oie oii oio oir ois oit oo- ooa ooc oog ooh ooi ooo oor oos oot or- ora orc ore org orh ori oro orr ors ort os- osa osc ose osg osh osi oso osr oss ost ot- ota otc ote otg oth oti oto otr ots ott ra- raa rac rae rag rah rai rao rar ras rat rca rcc rce rcg rch rci rco rcr rcs rct re- rea rec ree reg reh rei reo rer res ret rga rgc rge rgg rgh rgi rgo rgr rgs rgt rh- rha rhc rhe rhg rhh rhi rho rhr rhs rht ria ric rie rig rih rii rio rir ris rit roa roc roe rog roh roi roo ror ros rot rra rrc rrg rrh rri rrr rrs rrt rsa rsc rse rsg rsh rsi rso rsr rss rst rta rtc rte rtg rti rto rtr rts rtt saa sac sae sag sah sai sao sar sas sat sca scc sce scg sch sci sco scr scs sct se- sea sec see seg seh sei seo ser ses set sga sgc sge sgg sgh sgi sgo sgr sgs sgt sh- sha shc she shg shh shi sho shr shs sht sia sic sie sig sih sii sio sir sis sit soa soc soe sog soh soi soo sor sos sot sr- sra src sre srg srh sri sro srr srs srt ss- ssa ssc sse ssg ssh ssi sso ssr sss sst sta stc ste stg sth sti sto str sts stt taa tac tae tag tah tai tao tar tas tat tca tcc tce tcg tch tci tco tcr tcs tct te- tea tec tee teg teh tei teo ter tes tet tga tgc tge tgg tgh tgi tgo tgr tgs tgt th- tha thc the thg thh thi tho thr ths tht tia tic tie tig tih tii tio tir tis tit to- toa toc toe tog toh toi too tor tos tot tra trc tre