-ic a-a a-c a-i a-t aaa aac aad aag aai aao aar aas aat ac- aca acc acd acg aci aco acr acs act ad- ada adc add adg adi ado adr ads adt ag- aga agc agd agg agi ago agr ags agt ai- aia aic aid aig aii aio air ais ait aoa aoc aod aog aoi aoo aor aos aot ar- ara arc ard arg ari aro arr ars art as- asa asc asd asg asi aso asr ass ast at- ata atc atd atg ati ato atr ats att c-- caa cac cad cag cai cao car cas cat cca ccc ccd ccg cci cco ccr ccs cct cda cdc cdd cdg cdi cdo cdr cds cdt cga cgc cgd cgg cgi cgo cgr cgs cgt ci- cia cic cid cig cii cio cir cis cit co- coa coc cod cog coi coo cor cos cot cra crc crd crg cri cro crr crs crt csa csc csd csg csi cso csr css cst cta ctc ctd ctg cti cto ctr cts ctt daa dac dad dag dai dao dar das dat dca dcc dcd dcg dci dco dcr dcs dct dda ddc ddd ddg ddi ddo ddr dds ddt dga dgc dgd dgg dgi dgr dgs dgt di- dia dic did dig dii dio dir dis dit doa doc dod dog doi doo dor dos dot dra drc drd drg dri dro drr drs drt dsa dsc dsd dsg dsi dso dsr dss dst dta dtc dtd dtg dti dto dtr dts dtt g-d gaa gac gad gag gai gao gar gas gat gca gcc gcd gcg gci gco gcr gcs gct gda gdc gdd gdi gdo gdr gds gdt gga ggc ggd ggg ggi ggo ggr ggs ggt gia gic gid gig gii gio gir gis git goa goc god gog goi goo gor gos got gra grc grd grg gri gro grr grs grt gsa gsc gsd gsg gsi gso gsr gss gst gta gtc gtd gtg gti gto gtr gts gtt i-d ia- iaa iac iad iag iai iao iar ias iat ica icc icd icg ici ico icr ics ict ida idc idd idg idi ido idr ids idt iga igc igd igg igi igo igr igs igt iia iic iid iii iio iir iis iit io- ioa ioc iod iog ioi ioo ior ios iot ir- ira irc ird irg iri iro irr irs irt is- isa isc isd isg isi iso isr iss ist ita itc itd itg iti ito its itt o-i oaa oac oad oag oai oao oar oas oat oc- oca occ ocd ocg oci oco ocr ocs oct oda odc odd odg odi odo odr ods odt oga ogc ogd ogg ogi ogo ogs ogt oia oic oid oii oio oir ois oit oo- ooa ooc ood oog ooi ooo oor oos oot or- ora orc ord org ori oro orr ors ort os- osa osc osd osg osi oso osr oss ost ot- ota otc otd otg oti oto otr ots ott ra- raa rac rad rag rai rao rar ras rat rca rcc rcd rcg rci rco rcr rcs rct rda rdc rdd rdg rdi rdo rdr rds rdt rga rgc rgd rgg rgi rgo rgr rgs rgt ria ric rid rig rii rio rir ris rit roa roc rod rog roi roo ror ros rot rra rrc rrd rrg rri rrr rrs rrt rsa rsc rsd rsg rsi rso rsr rss rst rta rtc rtd rtg rti rto rtr rts rtt saa sac sad sag sai sao sar sas sat sca scc scd scg sci sco scr scs sct sda sdc sdd sdg sdi sdo sdr sds sdt sga sgc sgd sgg sgi sgo sgr sgs sgt sia sic sid sig sii sio sir sis sit soa soc sod sog soi soo sor sos sot sr- sra src srd srg sri sro srr srs srt ss- ssa ssc ssd ssg ssi sso ssr sss sst sta stc std stg sti sto str sts stt taa tac tad tag tai tao tar tas tat tca tcc tcd tcg tci tco tcr tcs tct tda tdc tdd tdg tdi tdo tdr tds tdt tga tgc tgg tgi tgo tgr tgs tgt tia tic tid tig tii tio tir tis tit to- toa toc tod tog toi too tor tos tot tra trc trd trg tri tro trr trs trt tsa tsc tsd tsg tsi tso tsr tss tst tta ttc ttd ttg tti tto ttr tts ttt