iii iio iir iis iit iki ikk iko ikr iks ikt io- ioi ioo ior ios iot ir- iri irk iro irr irs irt is- isi isk iso isr iss ist iti itk ito its itt k-t kii kik kio kir kis kit kki kkk kkr kks kkt koi kok koo kor kos kot kri krk kro krr krs krt ksi ksk kso ksr kss kst ktk kto ktr kts ktt o-i oii oik oio oir ois oit oki okk oko okr oks oo- ooi ook ooo oor oos oot or- ori ork oro orr ors ort os- osi osk oso osr oss ost ot- oti otk oto otr ots ott rii rik rio rir ris rit rkk rko rks rkt roi rok roo ror ros rot rri rrk rrr rrs rrt rsi rsk rso rsr rss rst rti rtk rto rtr rts rtt sii sik sio sir sis sit sk- ski skk sko skr sks skt soi sok soo sor sos sot sr- sri srk sro srr srs srt ss- ssi ssk sso ssr sss sst sti stk sto str sts stt tii tik tio tir tis tit tkk tko tkr tks tkt to- toi tok too tor tos tot tri trk tro trr trs trt tsi tsk tso tsr tss tst tti ttk tto ttr tts ttt