a-a a-t aaa aaf aag aan aao aar aat af- afa aff afg afn afo afr aft ag- aga agf agg agn ago agr agt an- ana anf ang ann ano anr ant aoa aof aog aon aoo aor aot ar- ara arf arg arn aro arr art at- ata atf atg atn ato atr att faa faf fag fan fao far fat ffa fff ffg ffn ffo ffr fft fga fgf fgg fgn fgr fgt fna fnf fng fnn fnr fnt foa fof fog fon foo for fot fra frf frg frn fro frr frt fta ftf ftg ftn fto ftr ftt gaa gaf gag gan gao gar gat gfa gff gfo gfr gft gga ggg ggn ggo ggr ggt gna gnf gnn gno gnr gnt goa gof gog gon goo gor got gra grf grg grn gro grr grt gta gtf gtg gtn gto gtr gtt naa naf nag nan nao nar nat nfa nff nfn nfo nfr nft nga ngf ngg ngn ngo ngt nna nnf nng nnn nno nnt no- noa nof nog non noo nor not nra nrf nrg nrn nro nrr nrt nta ntf ntg ntn nto ntr ntt oaa oaf oag oan oao oar oat of- ofa off ofg ofn ofo ofr oft oga ogf ogg ogn ogo ogt on- ona onf ong onn ono onr ont oo- ooa oof oog oon ooo oor oot or- ora orf org orn oro orr ort ot- ota otf otg otn oto otr ott ra- raa raf rag ran rao rar rat rfa rff rfg rfn rfo rfr rft rga rgf rgg rgn rgo rgr rgt rna rng rnn rno rnr rnt roa rof rog ron roo ror rot rra rrf rrg rrn rrr rrt rta rtf rtg rtn rto rtr rtt taa taf tag tan tao tar tat tfa tff tfg tfn tfo tfr tft tga tgf tgg tgn tgo tgr tgt tna tnf tng tnn tno tnr tnt to- toa tof tog ton too tor tot tra trf trg trn tro trr trt tta ttf ttg ttn tto ttr ttt