ddd ddg ddk ddo dds ddz dgd dgg dgk dgs dgz dkg dkk dko dks dod dog dok doo dos doz dsd dsg dsk dso dss dsz dzd dzo dzs g-d gdd gdk gdo gds ggd ggg ggo ggs ggz gkd gko gks god gog gok goo gos goz gsd gsg gsk gso gss gzo k-z kdg kdk kdo kds kgd kgo kgs kkk kks kod kog kok koo kos koz ksd ksg ksk kso kss kzo odd odg odo ods ogd ogg ogo ogs okd okg okk oko oks oo- ood oog ook ooo oos os- osd osg osk oso oss ozo ozs ozz sdd sdg sdk sdo sds sdz sgd sgg sgk sgo sgs sk- skd skg skk sko sks sod sog sok soo sos soz ss- ssd ssg ssk sso sss ssz szd z-g zds zgg zgs zks zo- zod zog zok zoo zos zsg zsz zzs zzz