a-a a-t aaa aad aag aap aar aat ad- ada add adg adp adr adt ag- aga agd agg agp agr agt ap- apa apd apg app apr apt ar- ara ard arg arp arr art at- ata atd atg atp atr att daa dad dag dap dar dat dda ddd ddg ddp ddr ddt dga dgd dgg dgp dgr dgt dpa dpd dpg dpp dpr dpt dra drd drg drp drr drt dta dtd dtg dtp dtr dtt g-d g-p gaa gad gag gap gar gat gda gdd gdp gdr gdt gga ggd ggg ggp ggr ggt gpa gpd gpg gpp gpr gpt gra grd grg grp grr grt gta gtd gtg gtp gtr gtt p-p paa pad pag pap par pat pda pdd pdg pdp pdr pdt pga pgd pgg pgp pgr pgt ppa ppd ppg ppp ppr ppt pra prd prg prp prr prt pt- pta ptd ptg ptp ptr ptt ra- raa rad rag rap rar rat rda rdd rdg rdp rdr rdt rga rgd rgg rgp rgr rgt rpa rpd rpg rpp rpr rpt rra rrd rrg rrp rrr rrt rta rtd rtg rtp rtr rtt taa tad tag tap tar tat tda tdd tdg tdp tdr tdt tga tgg tgp tgr tgt tpa tpd tpg tpp tpr tpt tra trd trg trp trr trt tta ttd ttg ttp ttr ttt