sra srb sre srg srl srm sro srr srs sry ss- ssa ssb sse ssg ssl ssm sso ssr sss ssu sua sub sue sug sul sum suo sur sus suu suy sy- sya syb sye syg syl sym syr sys syu ua- uaa uab uae uag ual uam uao uar uas uau uay uba ubb ube ubg ubl ubo ubr ubs ubu uby uea ueb uee ueg uel uem uer ues uey uga ugb uge ugg ugl ugm ugo ugr ugs ugu ula ulb ule ulg ull ulm ulo ulr uls ulu uly um- uma umb ume umg uml umm umo umr ums umu uoa uob uoe uog uol uom uoo uor uos ur- ura urb ure urg url urm uro urr urs uru ury usa usb use usg usl usm uso usr uss usu uua uue uug uum uur uus uuu uyo uys uyu yaa yab yae yag yal yam yao yar yas yau yay ybe ybg ybl ybm ybr ybs yby yea yeb yee yeg yel yem yeo yer yes yey yga ygl ygm ygo yle ylg yll ylm ylr yls yly yma yme ymg yml ymm ymo yms yob yoe yog yol yom yoo yor yos you yoy yra yre yrg yro yrs yru ysa ysb yse ysg ysl ysm yso ysr yss ysu ysy yua yue yug yul yum yuo yur yus yuu yuy yyb yye yyg yys yyu yyy