a-a a-i aaa aaf aai aap aar aas aay af- afa aff afi afp afr afs afy ai- aia aif aii aip air ais aiy ap- apa apf api app apr aps apy ar- ara arf ari arp arr ars ary as- asa asf asi asp asr ass asy ay- aya ayf ayi ayp ayr ays faa faf fai fap far fas fay ffa fff ffi ffp ffr ffs ffy fia fif fii fip fir fis fpa fpi fpp fpr fps fpy fra frf fri frp frr frs fry fsa fsf fsi fsp fsr fss fy- fya fyi fyp i-f ia- iaa iaf iai iap iar ias ifa iff ifi ifp ifr ifs ify iia iif iii iip iir iis ipa ipf ipi ipp ipr ips ipy ir- ira irf iri irp irr irs iry is- isa isf isi isp isr iss isy iya iyr iys iyy p-p paa paf pai pap par pas pay pfa pff pfi pfp pfr pfs pfy pia pif pii pip pir pis ppa ppf ppi ppp ppr pps pra prf pri prp prr prs pry ps- psa psf psi psp psr pss psy py- pya pyf pyr pys ra- raa raf rai rap rar ras ray rfa rff rfi rfp rfr rfs ria rif rii rip rir ris riy rpa rpf rpi rpp rpr rps rra rrf rri rrp rrr rrs rsa rsf rsi rsp rsr rss ry- rya ryf ryr rys ryy saa saf sai sap sar sas say sfa sff sfi sfp sfr sfs sia sif sii sip sir sis spa spf spi spp spr sps spy sr- sra srf sri srp srr srs sry ss- ssa ssf ssi ssp ssr sss sy- sya syi syp syr sys yaa yaf yai yap yar yas yay yfa yff yfr yfs yif yii yip yir yis ypa ypf yps yra yrf yrp yrs ysa ysi ysp ysr yss ysy yyf yys yyy