a-a a-i aaa aaf aag aai aar aas aay af- afa aff afg afi afr afs afy ag- aga agf agg agi agr ags agy ai- aia aif aig aii air ais aiy ar- ara arf arg ari arr ars ary as- asa asf asg asi asr ass asy ay- aya ayf ayi ayr ays faa faf fag fai far fas fay ffa fff ffg ffi ffr ffs ffy fga fgf fgg fgi fgr fgs fia fif fig fii fir fis fra frf frg fri frr frs fry fsa fsf fsg fsi fsr fss fy- fya fyi gaa gaf gag gai gar gas gay gfa gff gfi gfr gfs gfy gga ggg ggi ggr ggs gia gif gig gii gir gis giy gra grf grg gri grr grs gry gsa gsf gsg gsi gsr gss gy- gya gyf gyr gys i-f ia- iaa iaf iag iai iar ias ifa iff ifg ifi ifr ifs ify iga igf igg igi igr igs igy iia iif iii iir iis ir- ira irf irg iri irr irs iry is- isa isf isg isi isr iss isy iya iyr iys iyy ra- raa raf rag rai rar ras ray rfa rff rfg rfi rfr rfs rga rgf rgg rgi rgr rgs ria rif rig rii rir ris riy rra rrf rrg rri rrr rrs rsa rsf rsg rsi rsr rss ry- rya ryf ryg ryr rys ryy saa saf sag sai sar sas say sfa sff sfg sfi sfr sfs sga sgf sgg sgi sgr sgs sia sif sig sii sir sis sr- sra srf srg sri srr srs sry ss- ssa ssf ssg ssi ssr sss sy- sya syg syi syr sys yaa yaf yag yai yar yas yay yfa yff yfr yfs yga yif yig yii yir yis yra yrf yrg yrs ysa ysg ysi ysr yss ysy yyf yyg yys yyy