iii iio iip iis iit iki ikk iko iks ikt io- ioi ioo iop ios iot ipi ipo ipp ips ipt is- isi isk iso isp iss ist iti itk ito itp its itt k-t kii kik kio kip kis kit kki kkk kkp kks kkt koi kok koo kop kos kot kpi kpk kpo kpp kps kpt ksi ksk kso ksp kss kst ktk kto ktp kts ktt o-i oii oik oio oip ois oit oki okk oko okp oks oo- ooi ook ooo oop oos oot op- opi opk opo opp ops opt os- osi osk oso osp oss ost ot- oti otk oto otp ots ott p-p pii pik pio pip pis pit pki pko pkp pks pkt poi pok poo pop pos pot ppi ppk ppo ppp pps ppt ps- psi psk pso psp pss pst pt- pti ptk pto ptp pts ptt sii sik sio sip sis sit sk- ski skk sko skp sks skt soi sok soo sop sos sot spi spk spo spp sps spt ss- ssi ssk sso ssp sss sst sti stk sto stp sts stt tii tik tio tip tis tit tkk tko tkp tks tkt to- toi tok too top tos tot tpi tpk tpo tpp tps tpt tsi tsk tso tsp tss tst tti ttk tto ttp tts ttt