sls slu sly sna snb snc sne snl snn snr sns snu sny sr- sra srb src sre srh srl srn srr srs sry ss- ssa ssb ssc sse ssh ssl ssn ssr sss ssu sua sub suc sue suh sul sun sur sus suu suy sy- sya syb syc sye syh syl syn syr sys syu ua- uaa uab uac uae uah ual uan uar uas uau uay uba ubb ubc ube ubh ubl ubn ubr ubs ubu uby uca ucb ucc uce uch ucl ucn ucr ucs ucu uea ueb uec uee ueh uel uen uer ues uey uha uhb uhc uhe uhh uhl uhr uhs uhu uhy ula ulb ulc ule ull uln ulr uls ulu uly un- una unb unc une unh unl unn unr uns unu uny ur- ura urb urc ure url urn urr urs uru ury usa usb usc use ush usl usn usr uss usu uua uuc uue uun uur uus uuu uyc uys uyu yaa yab yac yae yah yal yan yar yas yau yay ybc ybe ybl ybr ybs yby yca ycc yce ych ycl ycs ycu ycy yea yeb yec yee yeh yel yen yer yes yey yha yhc yhe yhs yhu ylc yle yll ylr yls yly yna yne ynn yns ynu yny yra yrc yre yrn yrs yru ysa ysb ysc yse ysl ysr yss ysu ysy yua yue yuh yul yun yur yus yuu yuy yyb yyc yye yys yyu yyy