spp spr sps spt spy sr- srd sre srh sri srn sro srp srr srs srt sry ss- ssd sse ssh ssi ssn sso ssp ssr sss sst std ste sth sti stn sto stp str sts stt sty sy- syd sye syh syi syn syp syr sys syt tdd tde tdh tdi tdn tdo tdp tdr tds tdt tdy te- ted tee teh tei ten teo tep ter tes tet tey th- thd the thh thi thn tho thp thr ths tht thy tid tie tih tii tin tio tip tir tis tit tiy tnd tne tnh tni tnn tno tnp tnr tns tnt to- tod toe toh toi ton too top tor tos tot toy tpd tpe tph tpi tpn tpo tpp tpr tps tpt trd tre trh tri trn tro trp trr trs trt try tsd tse tsh tsi tsn tso tsp tsr tss tst tsy ttd tte tth tti ttn tto ttp ttr tts ttt tty tyd tye tyn tyo typ tyr tys tyt yde ydn ydo yds ydt ydy yed yee yeh yei yen yeo yep yer yes yet yey yhe yhi yhs yht yid yie yih yii yin yio yip yir yis yit ynd yne ynn ynp yns yny yod yoe yoi yon yoo yop yor yos yot yoy ypd ypo yps yre yrn yro yrp yrs yrt yse ysi yso ysp ysr yss yst ysy ytd yte yth ytn yto ytp ytr yts ytt yye yys yyt yyy