iii iip iir iis iki ikk ikr iks ipi ipp ipr ips ipy ir- iri irk irp irr irs iry is- isi isk isp isr iss isy iyr iys iyy kii kik kip kir kis kki kkk kkp kkr kks kky kpi kpk kpp kpr kps kri krk krp krr krs kry ksi ksk ksp ksr kss kyp kyr kys p-p pii pik pip pir pis pki pkp pkr pks pky ppi ppk ppp ppr pps pri prk prp prr prs pry ps- psi psk psp psr pss psy py- pyk pyr pys rii rik rip rir ris riy rkk rkp rks rky rpi rpk rpp rpr rps rri rrk rrp rrr rrs rsi rsk rsp rsr rss ry- ryk ryr rys ryy sii sik sip sir sis sk- ski skk skp skr sks sky spi spk spp spr sps spy sr- sri srk srp srr srs sry ss- ssi ssk ssp ssr sss sy- syi syk syp syr sys yii yip yir yis yki ykk yps yrp yrs ysi ysk ysp ysr yss ysy yys yyy