spu spy sr- sra src srg sri srl sro srp srr srs sry ss- ssa ssc ssg ssi ssl sso ssp ssr sss ssu sua suc sug sui sul suo sup sur sus suu suy sy- sya syc syg syi syl syp syr sys syu ua- uaa uac uag uai ual uao uap uar uas uau uay uca ucc ucg uci ucl uco ucp ucr ucs ucu uga ugc ugg ugi ugl ugo ugp ugr ugs ugu uia uic uig uii uil uio uip uir uis uiu ula ulc ulg uli ull ulo ulp ulr uls ulu uly uoa uoc uog uol uoo uop uor uos up- upa upc upg upi upo upp upr ups upu ur- ura urc urg uri url uro urp urr urs uru ury usa usc usg usi usl uso usp usr uss usu uua uuc uug uur uus uuu uyc uyi uyo uys uyu yaa yac yag yai yal yao yap yar yas yau yay yca ycc yci ycl yco ycp ycs ycu ycy yga ygc ygl ygo yig yii yio yip yir yis ylc ylg yli yll ylr yls yly yoc yog yoi yol yoo yop yor yos you yoy ypa ypg ypl ypo yps ypu yra yrc yrg yro yrp yrs yru ysa ysc ysg ysi ysl yso ysp ysr yss ysu ysy yua yug yui yul yuo yup yur yus yuu yuy yyc yyg yys yyu yyy