ddd ddi ddk ddp dds di- did dii dik dip dis dki dkk dkp dks dpd dpi dpk dpp dps dsd dsi dsk dsp dss i-d idd idi idk idp ids iid iii iip iis iki ikk iks ipd ipi ipp ips is- isd isi isk isp iss kdk kdp kds kid kii kik kip kis kki kkk kkp kks kpd kpi kpk kpp kps ksd ksi ksk ksp kss p-p pdd pdi pdk pdp pds pid pii pik pip pis pkd pki pkp pks ppd ppi ppk ppp pps ps- psd psi psk psp pss sdd sdi sdk sdp sds sid sii sik sip sis sk- skd ski skk skp sks spd spi spk spp sps ss- ssd ssi ssk ssp sss