spf sph spi spm spo spp sps spt spy ss- ssc sse ssf ssh ssi ssm sso ssp sss sst stc ste stf sth sti stm sto stp sts stt sty sy- syc sye syh syi sym syp sys syt tcc tce tcf tch tci tcm tco tcp tcs tct te- tec tee tef teh tei tem teo tep tes tet tey tfc tfe tff tfh tfi tfm tfo tfp tfs tft th- thc the thf thh thi thm tho thp ths tht thy tic tie tif tih tii tim tio tip tis tit tiy tmc tme tmf tmh tmi tmm tmo tmp tms tmt tmy to- toc toe tof toh toi tom too top tos tot toy tpc tpe tpf tph tpi tpm tpo tpp tps tpt tsc tse tsf tsh tsi tsm tso tsp tss tst tsy ttc tte ttf tth tti ttm tto ttp tts ttt tty tyc tye tyf tym tyo typ tys tyt ycc yce ycf ych yci yco ycp ycs ycy yec yee yef yeh yei yem yeo yep yes yet yey yfc yfe yff yfm yfs yft yhc yhe yhi yhs yht yie yif yih yii yim yio yip yis yit ymc yme ymi ymm ymo yms ymt yoc yoe yof yoi yom yoo yop yos yot yoy ypf ypo yps ysc yse ysi ysm yso ysp yss yst ysy ytc yte ytf yth ytm yto ytp yts ytt yyc yye yyf yys yyt yyy