a-a a-t aaa aag aan aao aar aas aat aax ag- aga agg agn ago agr ags agt agx an- ana ang ann ano anr ans ant anx aoa aog aon aoo aor aos aot aox ar- ara arg arn aro arr ars art arx as- asa asg asn aso asr ass ast asx at- ata atg atn ato atr ats att atx ax- axa axn axo axr axs axt axx 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 gox gra grg grn gro grr grs grt grx gsa gsg gsn gso gsr gss gst gsx gta gtg gtn gto gtr gts gtt gtx gxa gxs gxt naa nag nan nao nar nas nat nax nga ngg ngn ngo ngs ngt nna nng nnn nno nns nnt no- noa nog non noo nor nos not nox nra nrg nrn nro nrr nrs nrt nrx nsa nsg nsn nso nsr nss nst nsx nta ntg ntn nto ntr nts ntt ntx nxt oaa oag oan oao oar oas oat oax oga ogg ogn ogo ogs ogt ogx on- ona ong onn ono onr ons ont onx oo- ooa oog oon ooo oor oos oot oox or- ora org orn oro orr ors ort orx os- osa osg osn oso osr oss ost osx ot- ota otg otn oto otr ots ott ox- oxa oxn oxo oxt oxx ra- raa rag ran rao rar ras rat rax rga rgg rgn rgo rgr rgs rgt rgx rna rng rnn rno rnr rns rnt roa rog ron roo ror ros rot rox rra rrg rrn rrr rrs rrt rsa rsg rsn rso rsr rss rst rsx rta rtg rtn rto rtr rts rtt rtx rxr rxs saa sag san sao sar sas sat sax sga sgg sgn sgo sgr sgs sgt sgx sna sng snn sno snr sns snt soa sog son soo sor sos sot sox sr- sra srg srn sro srr srs srt srx ss- ssa ssg ssn sso ssr sss sst ssx sta stg stn sto str sts stt stx sxn sxs sxt t-x taa tag tan tao tar tas tat tax tga tgg tgn tgo tgr tgs tgt tna tng tnn tno tnr tns tnt tnx to- toa tog ton too tor tos tot tox tra trg trn tro trr trs trt trx tsa tsg tsn tso tsr tss tst tsx tta ttg ttn tto ttr tts ttt ttx txn txs txt xaa xag xan xar xas xat xna xno xns xoa xog xon xoo xor xos xot xox xrt xrx xsa xss xst xtr xts xtx xxo xxx