sin sip sis siu sla slb sld sle sli sll sln slp sls slu sly sna snb snd sne sni snl snn snp sns snu sny spa spb spd spe spi spl spn spp sps spu spy ss- ssa ssb ssd sse ssi ssl ssn ssp sss ssu sua sub sud sue sui sul sun sup sus suu suy sy- sya syb syd sye syi syl syn syp sys syu ua- uaa uab uad uae uai ual uan uap uas uau uay uba ubb ube ubi ubl ubn ubp ubs ubu uby uda udb udd ude udi udl udn udp uds udu uea ueb ued uee uei uel uen uep ues uey uia uib uid uie uii uil uin uip uis uiu ula ulb uld ule uli ull uln ulp uls ulu uly un- una unb und une uni unl unn unp uns unu uny up- upa upb upd upe upi upn upp ups upu usa usb usd use usi usl usn usp uss usu uua uue uun uus uuu uyi uys uyu yaa yab yad yae yai yal yan yap yas yau yay ybe ybi ybl ybp ybs yby yda yde ydl ydn yds ydy yea yeb yed yee yei yel yen yep yes yey yid yie yii yin yip yis yld yle yli yll yls yly yna ynd yne ynn ynp yns ynu yny ypa ypd ypl yps ypu ysa ysb yse ysi ysl ysp yss ysu ysy yua yud yue yui yul yun yup yus yuu yuy yyb yye yys yyu yyy