sir sis siu sr- sra src srd sre srf srh sri srr srs sry ss- ssa ssc ssd sse ssf ssh ssi ssr sss ssu sua suc sud sue suf suh sui sur sus suu suy sy- sya syc syd sye syh syi syr sys syu ua- uaa uac uad uae uaf uah uai uar uas uau uay uca ucc ucd uce ucf uch uci ucr ucs ucu uda udc udd ude udf udi udr uds udu uea uec ued uee uef ueh uei uer ues uey ufa ufc ufd ufe uff ufh ufi ufr ufs ufu uha uhc uhd uhe uhf uhh uhi uhr uhs uhu uhy uia uic uid uie uif uii uir uis uiu ur- ura urc urd ure urf uri urr urs uru ury usa usc usd use usf ush usi usr uss usu uua uuc uue uur uus uuu uyc uyi uys uyu yaa yac yad yae yaf yah yai yar yas yau yay yca ycc ycd yce ycf ych yci ycs ycu ycy yda yde yds ydy yea yec yed yee yef yeh yei yer yes yey yfa yfc yfd yfe yff yfr yfs yfu yha yhc yhe yhi yhs yhu yid yie yif yih yii yir yis yra yrc yre yrf yrs yru ysa ysc yse ysi ysr yss ysu ysy yua yud yue yuh yui yur yus yuu yuy yyc yye yyf yys yyu yyy