-er -ic a-a a-c a-i a-t aaa aac aad aae aag aai aao aap aar aat ac- aca acc acd ace acg aci aco acp acr act ad- ada adc add ade adg adi ado adp adr adt aea aec aed aee aeg aei aeo aep aer aet ag- aga agc agd age agg agi ago agp agr agt ai- aia aic aid aie aig aii aio aip air ait aoa aoc aod aoe aog aoi aoo aop aor aot ap- apa apc apd ape apg api apo app apr apt ar- ara arc ard are arg ari aro arp arr art at- ata atc atd ate atg ati ato atp atr att c-- caa cac cad cae cag cai cao cap car cat cca ccc ccd cce ccg cci cco ccp ccr cct cda cdc cdd cde cdg cdi cdo cdp cdr cdt ce- cea cec ced cee ceg cei ceo cep cer cet cga cgc cgd cge cgg cgi cgo cgp cgr cgt ci- cia cic cid cie cig cii cio cip cir cit co- coa coc cod coe cog coi coo cop cor cot cpa cpc cpd cpe cpg cpi cpo cpp cpr cpt cra crc crd cre crg cri cro crp crr crt cta ctc ctd cte ctg cti cto ctp ctr ctt daa dac dad dae dag dai dao dap dar dat dca dcc dcd dce dcg dci dco dcp dcr dct dda ddc ddd dde ddg ddi ddo ddp ddr ddt de- dea dec ded dee deg dei deo dep der det dga dgc dgd dge dgg dgi dgp dgr dgt di- dia dic did die dig dii dio dip dir dit doa doc dod doe dog doi doo dop dor dot dpa dpc dpd dpe dpg dpi dpo dpp dpr dpt dra drc drd dre drg dri dro drp drr drt dta dtc dtd dte dtg dti dto dtp dtr dtt eaa eac ead eae eag eai eao eap ear eat ec- eca ecc ecd ece ecg eci eco ecr ect ed- eda edc edd ede edg edi edo edp edr edt eea eec eed eee eeg eeo eep eer eet ega egc egd ege egg egi ego egp egr egt eia eic eid eie eig eii eio eip eir eit eo- eoa eoc eod eoe eog eoi eoo eop eor eot ep- epa epc epd epe epg epi epo epp epr ept era erc erd ere erg eri ero erp err ert eta etc etd ete etg eti eto etp etr ett g-d g-p gaa gac gad gae gag gai gao gap gar gat gca gcc gcd gce gcg gci gco gcp gcr gct gda gdc gdd gde gdi gdo gdp gdr gdt ge- gea gec ged gee geg gei geo gep ger get gga ggc ggd ggg ggi ggo ggp ggr ggt gia gic gid gie gig gii gio gip gir git goa goc god goe gog goi goo gop gor got gpa gpc gpd gpe gpg gpi gpo gpp gpr gpt gra grc grd gre grg gri gro grp grr grt gta gtc gtd gte gtg gti gto gtp gtr gtt i-d ia- iaa iac iad iae iag iai iao iap iar iat ica icc icd ice icg ici ico icp icr ict ida idc idd ide idg idi ido idp idr idt ie- iea iec ied iee ieg iei iep ier iet iga igc igd ige igg igi igo igp igr igt iia iic iid iie iii iio iip iir iit io- ioa ioc iod ioe iog ioi ioo iop ior iot ipa ipc ipd ipe ipg ipi ipo ipp ipr ipt ir- ira irc ird ire irg iri iro irp irr irt ita itc itd ite itg iti ito itp itt o-i oaa oac oad oae oag oai oao oap oar oat oc- oca occ ocd ocg oci oco ocp ocr oct oda odc odd ode odg odi odo odp odr odt oea oec oed oee oeg oei oeo oep oer oet oga ogc ogd oge ogg ogi ogo ogp ogt oia oic oid oie oii oio oip oir oit oo- ooa ooc ood oog ooi ooo oop oor oot op- opa opc opd ope opg opi opo opp opr opt or- ora orc ord ore org ori oro orp orr ort ot- ota otc otd ote otg oti oto otp otr ott p-p paa pac pad pae pag pai pao pap par pat pca pcc pcd pce pcg pci pco pcp pcr pct pda pdc pdd pde pdg pdi pdo pdp pdr pdt pea pec ped pee peg pei peo pep per pet pga pgc pgd pge pgg pgi pgo pgp pgr pgt pia pic pid pie pig pii pio pip pir pit poa poc pod poe pog poi poo pop por pot ppa ppc ppd ppe ppg ppi ppo ppp ppr ppt pra prc prd pre prg pri pro prp prr prt pt- pta ptc ptd pte ptg pti pto ptp ptr ptt ra- raa rac rad rae rag rai rao rap rar rat rca rcc rcd rce rcg rci rco rcp rcr rct rda rdc rdd rde rdg rdi rdo rdp rdr rdt re- rea rec red ree reg rei reo rep rer ret rga rgc rgd rge rgg rgi rgo rgp rgr rgt ria ric rid rie rig rii rio rip rir rit roa roc rod roe rog roi roo rop ror rot rpa rpc rpd rpe rpg rpi rpo rpp rpr rpt rra rrc rrd rrg rri rrp rrr rrt rta rtc rtd rte rtg rti rto rtp rtr rtt taa tac tad tae tag tai tao tap tar tat tca tcc tcd tce tcg tci tco tcp tcr tct tda tdc tdd tde tdg tdi tdo tdp tdr tdt te- tea tec ted tee teg tei teo tep ter tet tga tgc tge tgg tgi tgo tgp tgr tgt tia tic tid tie tig tii tio tip tir tit to- toa toc tod toe tog toi too top tor tot tpa tpc