-er a-a aaa aad aae aah aap aar ad- ada add ade adh adp adr aea aed aee aeh aep aer aha ahd ahe ahh ahp ahr ap- apa apd ape aph app apr ar- ara ard are arh arp arr daa dad dae dah dap dar dda ddd dde ddh ddp ddr de- dea ded dee deh dep der dh- dha dhd dhe dhh dhp dhr dpa dpd dpe dph dpp dpr dra drd dre drp drr eaa ead eae eah eap ear ed- eda edd ede edh edp edr eea eed eee eep eer eha ehd ehe ehh ehp ehr ep- epa epd epe eph epp epr era erd ere erh erp err haa had hae hah hap har hda hdd hde hdh hdp hdr he- hea hed hee heh hep her hha hhd hhe hhh hhp hhr hpa hpd hpe hph hpp hpr hr- hra hrd hre hrh hrp hrr p-p paa pad pae pah pap par pda pdd pde pdh pdp pdr pea ped pee peh pep per pha phd phe php phr ppa ppd ppe pph ppp ppr pra prd pre prh prp prr ra- raa rad rae rah rap rar rda rdd rde rdh rdp rdr re- rea red ree reh rep rer rh- rha rhd rhe rhh rhp rhr rpa rpd rpe rph rpp rpr rra rrd rrh rrp rrr