-er a-a a-t aaa aad aae aag aap aar aat ad- ada add ade adg adp adr adt aea aed aee aeg aep aer aet ag- aga agd age agg agp agr agt ap- apa apd ape apg app apr apt ar- ara ard are arg arp arr art at- ata atd ate atg atp atr att daa dad dae dag dap dar dat dda ddd dde ddg ddp ddr ddt de- dea ded dee deg dep der det dga dgd dge dgg dgp dgr dgt dpa dpd dpe dpg dpp dpr dpt dra drd dre drg drp drr drt dta dtd dte dtg dtp dtr dtt eaa ead eae eag eap ear eat ed- eda edd ede edg edp edr edt eea eed eee eeg eep eer eet ega egd ege egg egp egr egt ep- epa epd epe epg epp epr ept era erd ere erg erp err ert eta etd ete etg etp etr ett g-d g-p gaa gad gae gag gap gar gat gda gdd gde gdp gdr gdt ge- gea ged gee geg gep ger get gga ggd ggg ggp ggr ggt gpa gpd gpe gpg gpp gpr gpt gra grd gre grg grp grr grt gta gtd gte gtg gtp gtr gtt p-p paa pad pae pag pap par pat pda pdd pde pdg pdp pdr pdt pea ped pee peg pep per pet pga pgd pge pgg pgp pgr pgt ppa ppd ppe ppg ppp ppr ppt pra prd pre prg prp prr prt pt- pta ptd pte ptg ptp ptr ptt ra- raa rad rae rag rap rar rat rda rdd rde rdg rdp rdr rdt re- rea red ree reg rep rer ret rga rgd rge rgg rgp rgr rgt rpa rpd rpe rpg rpp rpr rpt rra rrd rrg rrp rrr rrt rta rtd rte rtg rtp rtr rtt taa tad tae tag tap tar tat tda tdd tde tdg tdp tdr tdt te- tea ted tee teg tep ter tet tga tge tgg tgp tgr tgt tpa tpd tpe tpg tpp tpr tpt tra trd tre trg trp trr trt tta ttd tte ttg ttp ttr ttt