spo spp sps spt spy ss- ssc sse ssf ssh ssi ssn sso ssp sss sst stc ste stf sth sti stn sto stp sts stt sty sy- syc sye syh syi syn syp sys syt tcc tce tcf tch tci tcn tco tcp tcs tct te- tec tee tef teh tei ten teo tep tes tet tey tfc tfe tff tfh tfi tfn tfo tfp tfs tft th- thc the thf thh thi thn tho thp ths tht thy tic tie tif tih tii tin tio tip tis tit tiy tnc tne tnf tnh tni tnn tno tnp tns tnt to- toc toe tof toh toi ton too top tos tot toy tpc tpe tpf tph tpi tpn tpo tpp tps tpt tsc tse tsf tsh tsi tsn tso tsp tss tst tsy ttc tte ttf tth tti ttn tto ttp tts ttt tty tyc tye tyf tyn tyo typ tys tyt ycc yce ycf ych yci yco ycp ycs ycy yec yee yef yeh yei yen yeo yep yes yet yey yfc yfe yff yfs yft yhc yhe yhi yhs yht yie yif yih yii yin yio yip yis yit yne ynn ynp yns yny yoc yoe yof yoi yon yoo yop yos yot yoy ypf ypo yps ysc yse ysi yso ysp yss yst ysy ytc yte ytf yth ytn yto ytp yts ytt yyc yye yyf yys yyt yyy