-er -ey ddd dde ddp ddr dds ddy de- ded dee dep der des dey dpd dpe dpp dpr dps drd dre drp drr drs dry dsd dse dsp dsr dss dsy dy- dyd dye dyp dyr dys dyy ed- edd ede edp edr eds edy eed eee eep eer ees eey ep- epd epe epp epr eps erd ere erp err ers ery es- esd ese esp esr ess esy eyd eye eyp eyr eys p-p pdd pde pdp pdr pds ped pee pep per pes pey ppd ppe ppp ppr pps prd pre prp prr prs pry ps- psd pse psp psr pss psy py- pyd pye pyr pys rdd rde rdp rdr rds rdy re- red ree rep rer res rey rpd rpe rpp rpr rps rrd rrp rrr rrs rsd rse rsp rsr rss ry- ryd rye ryr rys ryy sdd sde sdp sdr sds sdy se- sed see sep ser ses sey spd spe spp spr sps spy sr- srd sre srp srr srs sry ss- ssd sse ssp ssr sss sy- syd sye syp syr sys yde yds ydy yed yee yep yer yes yey ypd yps yre yrp yrs yse ysp ysr yss ysy yye yys yyy