-er -ic a-a a-c a-i a-t aaa aac aae aag aai aao aap aar aas aat ac- aca acc ace acg aci aco acp acr acs act aea aec aee aeg aei aeo aep aer aes aet ag- aga agc age agg agi ago agp agr ags agt ai- aia aic aie aig aii aio aip air ais ait aoa aoc aoe aog aoi aoo aop aor aos aot ap- apa apc ape apg api apo app apr aps apt ar- ara arc are arg ari aro arp arr ars art as- asa asc ase asg asi aso asp asr ass ast at- ata atc ate atg ati ato atp atr ats att c-- caa cac cae cag cai cao cap car cas cat cca ccc cce ccg cci cco ccp ccr ccs cct ce- cea cec cee ceg cei ceo cep cer ces cet cga cgc cge cgg cgi cgo cgp cgr cgs cgt ci- cia cic cie cig cii cio cip cir cis cit co- coa coc coe cog coi coo cop cor cos cot cpa cpc cpe cpg cpi cpo cpp cpr cps cpt cra crc cre crg cri cro crp crr crs crt csa csc cse csg csi cso csp csr css cst cta ctc cte ctg cti cto ctp ctr cts ctt eaa eac eae eag eai eao eap ear eas eat ec- eca ecc ece ecg eci eco ecr ecs ect eea eec eee eeg eeo eep eer ees eet ega egc ege egg egi ego egp egr egs egt eia eic eie eig eii eio eip eir eis eit eo- eoa eoc eoe eog eoi eoo eop eor eos eot ep- epa epc epe epg epi epo epp epr eps ept era erc ere erg eri ero erp err ers ert es- esa esc ese esg esi eso esp esr ess est eta etc ete etg eti eto etp etr ets ett g-p gaa gac gae gag gai gao gap gar gas gat gca gcc gce gcg gci gco gcp gcr gcs gct ge- gea gec gee geg gei geo gep ger ges get gga ggc ggg ggi ggo ggp ggr ggs ggt gia gic gie gig gii gio gip gir gis git goa goc goe gog goi goo gop gor gos got gpa gpc gpe gpg gpi gpo gpp gpr gps gpt gra grc gre grg gri gro grp grr grs grt gsa gsc gse gsg gsi gso gsp gsr gss gst gta gtc gte gtg gti gto gtp gtr gts gtt ia- iaa iac iae iag iai iao iap iar ias iat ica icc ice icg ici ico icp icr ics ict ie- iea iec iee ieg iei iep ier ies iet iga igc ige igg igi igo igp igr igs igt iia iic iie iii iio iip iir iis iit io- ioa ioc ioe iog ioi ioo iop ior ios iot ipa ipc ipe ipg ipi ipo ipp ipr ips ipt ir- ira irc ire irg iri iro irp irr irs irt is- isa isc ise isg isi iso isp isr iss ist ita itc ite itg iti ito itp its itt o-i oaa oac oae oag oai oao oap oar oas oat oc- oca occ ocg oci oco ocp ocr ocs oct oea oec oee oeg oei oeo oep oer oes oet oga ogc oge ogg ogi ogo ogp ogs ogt oia oic oie oii oio oip oir ois oit oo- ooa ooc oog ooi ooo oop oor oos oot op- opa opc ope opg opi opo opp opr ops opt or- ora orc ore org ori oro orp orr ors ort os- osa osc ose osg osi oso osp osr oss ost ot- ota otc ote otg oti oto otp otr ots ott p-p paa pac pae pag pai pao pap par pas pat pca pcc pce pcg pci pco pcp pcr pcs pct pea pec pee peg pei peo pep per pes pet pga pgc pge pgg pgi pgo pgp pgr pgs pgt pia pic pie pig pii pio pip pir pis pit poa poc poe pog poi poo pop por pos pot ppa ppc ppe ppg ppi ppo ppp ppr pps ppt pra prc pre prg pri pro prp prr prs prt ps- psa psc pse psg psi pso psp psr pss pst pt- pta ptc pte ptg pti pto ptp ptr pts ptt ra- raa rac rae rag rai rao rap rar ras rat rca rcc rce rcg rci rco rcp rcr rcs rct re- rea rec ree reg rei reo rep rer res ret rga rgc rge rgg rgi rgo rgp rgr rgs rgt ria ric rie rig rii rio rip rir ris rit roa roc roe rog roi roo rop ror ros rot rpa rpc rpe rpg rpi rpo rpp rpr rps rpt rra rrc rrg rri rrp rrr rrs rrt rsa rsc rse rsg rsi rso rsp rsr rss rst rta rtc rte rtg rti rto rtp rtr rts rtt saa sac sae sag sai sao sap sar sas sat sca scc sce scg sci sco scp scr scs sct se- sea sec see seg sei seo sep ser ses set sga sgc sge sgg sgi sgo sgp sgr sgs sgt sia sic sie sig sii sio sip sir sis sit soa soc soe sog soi soo sop sor sos sot spa spc spe spg spi spo spp spr sps spt sr- sra src sre srg sri sro srp srr srs srt ss- ssa ssc sse ssg ssi sso ssp ssr sss sst sta stc ste stg sti sto stp str sts stt taa tac tae tag tai tao tap tar tas tat tca tcc tce tcg tci tco tcp tcr tcs tct te- tea tec tee teg tei teo tep ter tes tet tga tgc tge tgg tgi tgo tgp tgr tgs tgt tia tic tie tig tii tio tip tir tis tit to- toa toc toe tog toi too top tor tos tot tpa tpc tpe tpg tpi tpo tpp