a-a a-t aaa aad aae aap aat ad- ada add ade adp adt aea aed aee aep aet ap- apa apd ape app apt at- ata atd ate atp att daa dad dae dap dat dda ddd dde ddp ddt de- dea ded dee dep det dpa dpd dpe dpp dpt dta dtd dte dtp dtt eaa ead eae eap eat ed- eda edd ede edp edt eea eed eee eep eet ep- epa epd epe epp ept eta etd ete etp ett p-p paa pad pae pap pat pda pdd pde pdp pdt pea ped pee pep pet ppa ppd ppe ppp ppt pt- pta ptd pte ptp ptt taa tad tae tap tat tda tdd tde tdp tdt te- tea ted tee tep tet tpa tpd tpe tpp tpt tta ttd tte ttp ttt