a-a a-t aaa aag aan aao aar aas aat ag- aga agg agn ago agr ags agt an- ana ang ann ano anr ans ant aoa aog aon aoo aor aos aot ar- ara arg arn aro arr ars art as- asa asg asn aso asr ass ast at- ata atg atn ato atr ats att gaa gag gan gao gar gas gat gga ggg ggn ggo ggr ggs ggt gna gnn gno gnr gns gnt goa gog gon goo gor gos got gra grg grn gro grr grs grt gsa gsg gsn gso gsr gss gst gta gtg gtn gto gtr gts gtt naa nag nan nao nar nas nat nga ngg ngn ngo ngs ngt nna nng nnn nno nns nnt no- noa nog non noo nor nos not nra nrg nrn nro nrr nrs nrt nsa nsg nsn nso nsr nss nst nta ntg ntn nto ntr nts ntt oaa oag oan oao oar oas oat oga ogg ogn ogo ogs ogt on- ona ong onn ono onr ons ont oo- ooa oog oon ooo oor oos oot or- ora org orn oro orr ors ort os- osa osg osn oso osr oss ost ot- ota otg otn oto otr ots ott ra- raa rag ran rao rar ras rat rga rgg rgn rgo rgr rgs rgt rna rng rnn rno rnr rns rnt roa rog ron roo ror ros rot rra rrg rrn rrr rrs rrt rsa rsg rsn rso rsr rss rst rta rtg rtn rto rtr rts rtt saa sag san sao sar sas sat sga sgg sgn sgo sgr sgs sgt sna sng snn sno snr sns snt soa sog son soo sor sos sot sr- sra srg srn sro srr srs srt ss- ssa ssg ssn sso ssr sss sst sta stg stn sto str sts stt taa tag tan tao tar tas tat tga tgg tgn tgo tgr tgs tgt tna tng tnn tno tnr tns tnt to- toa tog ton too tor tos tot tra trg trn tro trr trs trt tsa tsg tsn tso tsr tss tst tta ttg ttn tto ttr tts ttt