sls slt sly soa soc soe sof soh sol soo sor sos sot soy sr- sra src sre srf srh srl sro srr srs srt sry ss- ssa ssc sse ssf ssh ssl sso ssr sss sst sta stc ste stf sth stl sto str sts stt sty sy- sya syc sye syh syl syr sys syt taa tac tae taf tah tal tao tar tas tat tay tca tcc tce tcf tch tcl tco tcr tcs tct te- tea tec tee tef teh tel teo ter tes tet tey tfa tfc tfe tff tfh tfl tfo tfr tfs tft th- tha thc the thf thh thl tho thr ths tht thy tla tlc tle tlf tlh tll tlo tlr tls tlt to- toa toc toe tof toh tol too tor tos tot toy tra trc tre trf trh trl tro trr trs trt try tsa tsc tse tsf tsh tsl tso tsr tss tst tsy tta ttc tte ttf tth ttl tto ttr tts ttt tty tya tyc tye tyf tyl tyo tyr tys tyt yaa yac yae yaf yah yal yao yar yas yat yay yca ycc yce ycf ych ycl yco ycs ycy yea yec yee yef yeh yel yeo yer yes yet yey yfa yfc yfe yff yfr yfs yft yha yhc yhe yhs yht ylc yle yll ylr yls ylt yly yoc yoe yof yol yoo yor yos yot yoy yra yrc yre yrf yro yrs yrt ysa ysc yse ysl yso ysr yss yst ysy yta ytc yte ytf yth ytl yto ytr yts ytt yyc yye yyf yys yyt yyy