-er ddd dde ddh ddn ddo ddp ddr de- ded dee deh den deo dep der dh- dhd dhe dhh dho dhp dhr dnd dne dnh dnn dno dnp dnr dod doe doh don doo dop dor dpd dpe dph dpn dpo dpp dpr drd dre drn dro drp drr ed- edd ede edh edn edo edp edr eed eee een eeo eep eer ehd ehe ehh ehn eho ehp ehr en- end ene enh enn eno enp enr eo- eod eoe eoh eon eoo eop eor ep- epd epe eph epn epo epp epr erd ere erh ern ero erp err hdd hde hdh hdn hdo hdp hdr he- hed hee heh hen heo hep her hhd hhe hhh hhn hho hhp hhr hnd hne hnh hnn hno hod hoe hoh hon hoo hop hor hpd hpe hph hpn hpo hpp hpr hr- hrd hre hrh hrn hro hrp hrr ndd nde ndh ndn ndo ndp ndr ne- ned nee neh nen neo nep ner nhd nhe nhh nhn nhp nhr nne nnh nnn nno nnp no- nod noe noh non noo nop nor npd npe nph npn npo npp npr nrd nre nrn nro nrp nrr odd ode odh odn odo odp odr oed oee oeh oen oeo oep oer ohd ohe ohh ohn oho ohp ohr on- ond one onh onn ono onp onr oo- ood ooh oon ooo oop oor op- opd ope oph opn opo opp opr or- ord ore orh orn oro orp orr p-p pdd pde pdh pdn pdo pdp pdr ped pee peh pen peo pep per phd phe phn pho php phr pn- pnd pne pnh pnn pno pnp pnr pod poe poh pon poo pop por ppd ppe pph ppn ppo ppp ppr prd pre prh prn pro prp prr rdd rde rdh rdn rdo rdp rdr re- red ree reh ren reo rep rer rh- rhd rhe rhh rhn rho rhp rhr rnd rnh rnn rno rnp rnr rod roe roh ron roo rop ror rpd rpe rph rpn rpo rpp rpr rrd rrh rrn rrp rrr