iii iio iir iis iit iiu io- ioi ioo ior ios iot iou ir- iri iro irr irs irt iru iry is- isi iso isr iss ist isu isy iti ito its itt itu ity iu- iui iur ius iut iyo iyr iys iyt iyy o-i oii oio oir ois oit oiu oo- ooi ooo oor oos oot or- ori oro orr ors ort oru ory os- osi oso osr oss ost osu ot- oti oto otr ots ott otu ou- oui ouo our ous out oyi oyo oys rii rio rir ris rit riy roi roo ror ros rot rou roy rri rrr rrs rrt rru rsi rso rsr rss rst rsu rti rto rtr rts rtt rtu rty rui ruo rur rus rut ruu ruy ry- ryo ryr rys ryu ryy sii sio sir sis sit siu soi soo sor sos sot sou soy sr- sri sro srr srs srt sry ss- ssi sso ssr sss sst ssu sti sto str sts stt stu sty sui suo sur sus sut suu suy sy- syi syr sys syt syu tii tio tir tis tit tiu tiy to- toi too tor tos tot tou toy tri tro trr trs trt tru try tsi tso tsr tss tst tsu tsy tti tto ttr tts ttt ttu tty tui tuo tur tus tut tuu tuy tyo tyr tys tyt uii uio uir uis uit uiu uoo uor uos uot ur- uri uro urr urs urt uru ury usi uso usr uss ust usu uti uto utr uts utt utu uty uur uus uut uuu uyi uyo uys uyu yii yio yir yis yit yoi yoo yor yos yot you yoy yro yrs yrt yru ysi yso ysr yss yst ysu ysy yto ytr yts ytt ytu yui yuo yur yus yut yuu yuy yys yyt yyu yyy