iii iio iip iir iis iit iki ikk iko ikr iks ikt io- ioi ioo iop ior ios iot ipi ipo ipp ipr ips ipt ir- iri irk iro irp irr irs irt is- isi isk iso isp isr iss ist iti itk ito itp its itt k-t kii kik kio kip kir kis kit kki kkk kkp kkr kks kkt koi kok koo kop kor kos kot kpi kpk kpo kpp kpr kps kpt kri krk kro krp krr krs krt ksi ksk kso ksp ksr kss kst ktk kto ktp ktr kts ktt o-i oii oik oio oip oir ois oit oki okk oko okp okr oks oo- ooi ook ooo oop oor oos oot op- opi opk opo opp opr ops opt or- ori ork oro orp orr ors ort os- osi osk oso osp osr oss ost ot- oti otk oto otp otr ots ott p-p pii pik pio pip pir pis pit pki pko pkp pkr pks pkt poi pok poo pop por pos pot ppi ppk ppo ppp ppr pps ppt pri prk pro prp prr prs prt ps- psi psk pso psp psr pss pst pt- pti ptk pto ptp ptr pts ptt rii rik rio rip rir ris rit rkk rko rkp rks rkt roi rok roo rop ror ros rot rpi rpk rpo rpp rpr rps rpt rri rrk rrp rrr rrs rrt rsi rsk rso rsp rsr rss rst rti rtk rto rtp rtr rts rtt sii sik sio sip sir sis sit sk- ski skk sko skp skr sks skt soi sok soo sop sor sos sot spi spk spo spp spr sps spt sr- sri srk sro srp srr srs srt ss- ssi ssk sso ssp ssr sss sst sti stk sto stp str sts stt tii tik tio tip tir tis tit tkk tko tkp tkr tks tkt to- toi tok too top tor tos tot tpi tpk tpo tpp tpr tps tpt tri trk tro trp trr trs trt tsi tsk tso tsp tsr tss tst tti ttk tto ttp ttr tts ttt