ddd ddn ddo ddp ddr dds ddy dnd dnn dno dnp dnr dns dny dod don doo dop dor dos doy dpd dpn dpo dpp dpr dps drd drn dro drp drr drs dry dsd dsn dso dsp dsr dss dsy dy- dyd dyn dyo dyp dyr dys dyy ndd ndn ndo ndp ndr nds ndy nnn nno nnp nns no- nod non noo nop nor nos noy npd npn npo npp npr nps nrd nrn nro nrp nrr nrs nry nsd nsn nso nsp nsr nss nsy nyd nyn nyo nyp nys nyy odd odn odo odp odr ods on- ond onn ono onp onr ons ony oo- ood oon ooo oop oor oos op- opd opn opo opp opr ops opy or- ord orn oro orp orr ors ory os- osd osn oso osp osr oss oyd oyo oys p-p pdd pdn pdo pdp pdr pds pn- pnd pnn pno pnp pnr pns pny pod pon poo pop por pos poy ppd ppn ppo ppp ppr pps prd prn pro prp prr prs pry ps- psd psn pso psp psr pss psy py- pyd pyn pyo pyr pys rdd rdn rdo rdp rdr rds rdy rnd rnn rno rnp rnr rns rny rod ron roo rop ror ros roy rpd rpn rpo rpp rpr rps rrd rrn rrp rrr rrs rsd rsn rso rsp rsr rss ry- ryd ryn ryo ryr rys ryy sdd sdn sdo sdp sdr sds sdy snd snn sno snp snr sns sny sod son soo sop sor sos soy spd spn spo spp spr sps spy sr- srd srn sro srp srr srs sry ss- ssd ssn sso ssp ssr sss sy- syd syn syp syr sys ydn ydo yds ydy ynd ynn ynp yns yny yod yon yoo yop yor yos yoy ypd ypo yps yrn yro yrp yrs yso ysp ysr yss ysy yys yyy