a-a a-t aaa aaf aag aan aao aap aar aat af- afa aff afg afn afo afp afr aft ag- aga agf agg agn ago agp agr agt an- ana anf ang ann ano anp anr ant aoa aof aog aon aoo aop aor aot ap- apa apf apg apn apo app apr apt ar- ara arf arg arn aro arp arr art at- ata atf atg atn ato atp atr att faa faf fag fan fao fap far fat ffa fff ffg ffn ffo ffp ffr fft fga fgf fgg fgn fgp fgr fgt fna fnf fng fnn fnp fnr fnt foa fof fog fon foo fop for fot fpa fpg fpn fpo fpp fpr fpt fra frf frg frn fro frp frr frt fta ftf ftg ftn fto ftp ftr ftt g-p gaa gaf gag gan gao gap gar gat gfa gff gfo gfp gfr gft gga ggg ggn ggo ggp ggr ggt gna gnf gnn gno gnp gnr gnt goa gof gog gon goo gop gor got gpa gpf gpg gpn gpo gpp gpr gpt gra grf grg grn gro grp grr grt gta gtf gtg gtn gto gtp gtr gtt naa naf nag nan nao nap nar nat nfa nff nfn nfo nfp nfr nft nga ngf ngg ngn ngo ngp ngt nna nnf nng nnn nno nnp nnt no- noa nof nog non noo nop nor not npa npf npg npn npo npp npr npt nra nrf nrg nrn nro nrp nrr nrt nta ntf ntg ntn nto ntp ntr ntt oaa oaf oag oan oao oap oar oat of- ofa off ofg ofn ofo ofp ofr oft oga ogf ogg ogn ogo ogp ogt on- ona onf ong onn ono onp onr ont oo- ooa oof oog oon ooo oop oor oot op- opa opf opg opn opo opp opr opt or- ora orf org orn oro orp orr ort ot- ota otf otg otn oto otp otr ott p-p paa paf pag pan pao pap par pat pfa pff pfg pfn pfo pfp pfr pft pga pgf pgg pgn pgo pgp pgr pgt pn- pna pnf png pnn pno pnp pnr pnt poa pof pog pon poo pop por pot ppa ppf ppg ppn ppo ppp ppr ppt pra prf prg prn pro prp prr prt pt- pta ptf ptg ptn pto ptp ptr ptt ra- raa raf rag ran rao rap rar rat rfa rff rfg rfn rfo rfp rfr rft rga rgf rgg rgn rgo rgp rgr rgt rna rng rnn rno rnp rnr rnt roa rof rog ron roo rop ror rot rpa rpf rpg rpn rpo rpp rpr rpt rra rrf rrg rrn rrp rrr rrt rta rtf rtg rtn rto rtp rtr rtt taa taf tag tan tao tap tar tat tfa tff tfg tfn tfo tfp tfr tft tga tgf tgg tgn tgo tgp tgr tgt tna tnf tng tnn tno tnp tnr tnt to- toa tof tog ton too top tor tot tpa tpf tpg tpn tpo tpp tpr tpt tra trf trg trn tro trp trr trt tta ttf ttg ttn tto ttp ttr ttt