ddd ddi ddk ddn ddo ddp ddr dds di- did dii dik din dio dip dir dis dki dkk dko dkp dkr dks dnd dni dnk dnn dno dnp dnr dns dod doi dok don doo dop dor dos dpd dpi dpk dpn dpo dpp dpr dps drd dri drk drn dro drp drr drs dsd dsi dsk dsn dso dsp dsr dss i-d idd idi idk idn ido idp idr ids iid iii iin iio iip iir iis iki ikk iko ikr iks in- ind ini ink inn ino inp inr ins io- iod ioi ion ioo iop ior ios ipd ipi ipn ipo ipp ipr ips ir- ird iri irk irn iro irp irr irs is- isd isi isk isn iso isp isr iss kdk kdo kdp kdr kds kid kii kik kin kio kip kir kis kki kkk kkn kkp kkr kks kn- knd kni knk knn kno knp knr kod koi kok kon koo kop kor kos kpd kpi kpk kpn kpo kpp kpr kps krd kri krk krn kro krp krr krs ksd ksi ksk ksn kso ksp ksr kss n-i ndd ndi ndk ndn ndo ndp ndr nds nid nii nik nin nio nip nir nis nki nkk nkn nko nkp nkr nks nni nnk nnn nno nnp nns no- nod noi nok non noo nop nor nos npd npi npn npo npp npr nps nrd nri nrk nrn nro nrp nrr nrs nsd nsi nsk nsn nso nsp nsr nss o-i odd odi odn odo odp odr ods oid oii oik oin oio oip oir ois okd oki okk oko okp okr oks on- ond oni onk onn ono onp onr ons oo- ood ooi ook oon ooo oop oor oos op- opd opi opk opn opo opp opr ops or- ord ori ork orn oro orp orr ors os- osd osi osk osn oso osp osr oss p-p pdd pdi pdk pdn pdo pdp pdr pds pid pii pik pin pio pip pir pis pkd pki pkn pko pkp pkr pks pn- pnd pni pnk pnn pno pnp pnr pns pod poi pok pon poo pop por pos ppd ppi ppk ppn ppo ppp ppr pps prd pri prk prn pro prp prr prs ps- psd psi psk psn pso psp psr pss rdd rdi rdn rdo rdp rdr rds rid rii rik rin rio rip rir ris rkk rko rkp rks rnd rni rnn rno rnp rnr rns rod roi rok ron roo rop ror ros rpd rpi rpk rpn rpo rpp rpr rps rrd rri rrk rrn rrp rrr rrs rsd rsi rsk rsn rso rsp rsr rss sdd sdi sdk sdn sdo sdp sdr sds sid sii sik sin sio sip sir sis sk- skd ski skk sko skp skr sks snd sni snk snn sno snp snr sns sod soi sok son soo sop sor sos spd spi spk spn spo spp spr sps sr- srd sri srk srn sro srp srr srs ss- ssd ssi ssk ssn sso ssp ssr sss