a-a a-t aaa aag aan aao aar aat ag- aga agg agn ago agr agt an- ana ang ann ano anr ant aoa aog aon aoo aor aot ar- ara arg arn aro arr art at- ata atg atn ato atr att gaa gag gan gao gar gat gga ggg ggn ggo ggr ggt gna gnn gno gnr gnt goa gog gon goo gor got gra grg grn gro grr grt gta gtg gtn gto gtr gtt naa nag nan nao nar nat nga ngg ngn ngo ngt nna nng nnn nno nnt no- noa nog non noo nor not nra nrg nrn nro nrr nrt nta ntg ntn nto ntr ntt oaa oag oan oao oar oat oga ogg ogn ogo ogt on- ona ong onn ono onr ont oo- ooa oog oon ooo oor oot or- ora org orn oro orr ort ot- ota otg otn oto otr ott ra- raa rag ran rao rar rat rga rgg rgn rgo rgr rgt rna rng rnn rno rnr rnt roa rog ron roo ror rot rra rrg rrn rrr rrt rta rtg rtn rto rtr rtt taa tag tan tao tar tat tga tgg tgn tgo tgr tgt tna tng tnn tno tnr tnt to- toa tog ton too tor tot tra trg trn tro trr trt tta ttg ttn tto ttr ttt