spa spb spc sph spi spo spp spr sps spu spy sr- sra srb src srh sri sro srp srr srs sry ss- ssa ssb ssc ssh ssi sso ssp ssr sss ssu sua sub suc suh sui suo sup sur sus suu suy sy- sya syb syc syh syi syp syr sys syu ua- uaa uab uac uah uai uao uap uar uas uau uay uba ubb ubc ubh ubi ubo ubp ubr ubs ubu uby uca ucb ucc uch uci uco ucp ucr ucs ucu uha uhb uhc uhh uhi uho uhp uhr uhs uhu uhy uia uib uic uii uio uip uir uis uiu uoa uob uoc uoo uop uor uos up- upa upb upc uph upi upo upp upr ups upu ur- ura urb urc uri uro urp urr urs uru ury usa usb usc ush usi uso usp usr uss usu uua uuc uur uus uuu uyc uyi uyo uys uyu yaa yab yac yah yai yao yap yar yas yau yay ybc ybi ybp ybr ybs yby yca ycc ych yci yco ycp ycs ycu ycy yha yhc yhi yhs yhu yih yii yio yip yir yis yob yoc yoi yoo yop yor yos you yoy ypa ypo yps ypu yra yrc yro yrp yrs yru ysa ysb ysc ysi yso ysp ysr yss ysu ysy yua yuh yui yuo yup yur yus yuu yuy yyb yyc yys yyu yyy