k-t k-z kkk kkr kks kkt kok koo kor kos kot kow koz krk kro krr krs krt krw ksk kso ksr kss kst ksw ktk kto ktr kts ktt ktw kw- kwk kwo kws kwt kww kzo kzw okk oko okr oks okw oo- ook ooo oor oos oot oow or- ork oro orr ors ort orz os- osk oso osr oss ost osw ot- otk oto otr ots ott otw otz owk owo ows owt oww ozo ozs ozt ozw ozz rkk rko rks rkt rkz rok roo ror ros rot row roz rrk rrr rrs rrt rsk rso rsr rss rst rsw rtk rto rtr rts rtt rtw rtz rwr rws rzo sk- skk sko skr sks skt skw sok soo sor sos sot sow soz sr- srk sro srr srs srt srw ss- ssk sso ssr sss sst ssw ssz stk sto str sts stt stw stz swk swo swr sws swt szr tkk tko tkr tks tkt tkw tkz to- tok too tor tos tot tow toz trk tro trr trs trt trw trz tsk tso tsr tss tst tsw ttk tto ttr tts ttt ttw two twr tws twt tww tzs wko wkr wks wkt wkw wok woo wor wos wot wow woz wr- wrk wro wrr wrs wrt wrw wsk wso wsr wss wst wsw wto wtr wts wtt wtw wtz wwo wwt www wzt zks zo- zok zoo zor zos zot zow zro zrs zst zsz ztr zws zzr zzs zzt zzz