sna snc snd sne sng snn snp snr sns snu sny spa spc spd spe spg spn spp spr sps spu spy sr- sra src srd sre srg srn srp srr srs sry ss- ssa ssc ssd sse ssg ssn ssp ssr sss ssu sua suc sud sue sug sun sup sur sus suu suy sy- sya syc syd sye syg syn syp syr sys syu ua- uaa uac uad uae uag uan uap uar uas uau uay uca ucc ucd uce ucg ucn ucp ucr ucs ucu uda udc udd ude udg udn udp udr uds udu uea uec ued uee ueg uen uep uer ues uey uga ugc uge ugg ugn ugp ugr ugs ugu un- una unc und une ung unn unp unr uns unu uny up- upa upc upd upe upg upn upp upr ups upu ur- ura urc urd ure urg urn urp urr urs uru ury usa usc usd use usg usn usp usr uss usu uua uuc uue uug uun uur uus uuu uyc uys uyu yaa yac yad yae yag yan yap yar yas yau yay yca ycc ycd yce ycp ycs ycu ycy yda yde ydg ydn yds ydy yea yec yed yee yeg yen yep yer yes yey yga ygc yna ynd yne yng ynn ynp yns ynu yny ypa ypd ypg yps ypu yra yrc yre yrg yrn yrp yrs yru ysa ysc yse ysg ysp ysr yss ysu ysy yua yud yue yug yun yup yur yus yuu yuy yyc yye yyg yys yyu yyy