ddd ddn ddo ddp dds ddy ddz dnd dnn dno dnp dns dny dnz dod don doo dop dos doy doz dpd dpn dpo dpp dps dpz dsd dsn dso dsp dss dsy dsz dy- dyd dyn dyo dyp dys dyy dzd dzo dzp dzs ndd ndn ndo ndp nds ndy nnn nno nnp nns nnz no- nod non noo nop nos noy noz npd npn npo npp nps npz nsd nsn nso nsp nss nsy nsz nyd nyn nyo nyp nys nyy nzd nzo nzp nzs nzz odd odn odo odp ods on- ond onn ono onp ons ony oo- ood oon ooo oop oos op- opd opn opo opp ops opy os- osd osn oso osp oss oyd oyo oys ozo ozs ozz p-p pdd pdn pdo pdp pds pdz pn- pnd pnn pno pnp pns pny pod pon poo pop pos poy poz ppd ppn ppo ppp pps ppz ps- psd psn pso psp pss psy py- pyd pyn pyo pys pzp sdd sdn sdo sdp sds sdy sdz snd snn sno snp sns sny sod son soo sop sos soy soz spd spn spo spp sps spy spz ss- ssd ssn sso ssp sss ssz sy- syd syn syp sys szd szp ydn ydo yds ydy ynd ynn ynp yns yny yod yon yoo yop yos yoy ypd ypo yps yso ysp yss ysy ysz yys yyy yyz yzy zds znd znn zno znp zns zo- zod zon zoo zos zpo zpp zsz zzs zzy zzz