-er ddd dde ddh ddp ddr dds de- ded dee deh dep der des dh- dhd dhe dhh dhp dhr dhs dpd dpe dph dpp dpr dps drd dre drp drr drs dsd dse dsh dsp dsr dss ed- edd ede edh edp edr eds eed eee eep eer ees ehd ehe ehh ehp ehr ehs ep- epd epe eph epp epr eps erd ere erh erp err ers es- esd ese esh esp esr ess hdd hde hdh hdp hdr hds he- hed hee heh hep her hes hhd hhe hhh hhp hhr hhs hpd hpe hph hpp hpr hps hr- hrd hre hrh hrp hrr hrs hsd hse hsh hsp hsr hss p-p pdd pde pdh pdp pdr pds ped pee peh pep per pes phd phe php phr phs ppd ppe pph ppp ppr pps prd pre prh prp prr prs ps- psd pse psh psp psr pss rdd rde rdh rdp rdr rds re- red ree reh rep rer res rh- rhd rhe rhh rhp rhr rhs rpd rpe rph rpp rpr rps rrd rrh rrp rrr rrs rsd rse rsh rsp rsr rss sdd sde sdh sdp sdr sds se- sed see seh sep ser ses sh- shd she shh shp shr shs spd spe sph spp spr sps sr- srd sre srh srp srr srs ss- ssd sse ssh ssp ssr sss