-ly -ol fff ffl ffo ffp ffs fft ffy flf fll flo flp fls flt fly fof fol foo fop fos fot foy fpl fpo fpp fps fpt fpy fsf fsl fso fsp fss fst ftf ftl fto ftp fts ftt fty fy- fyo fyp l-p lff lfl lfo lfp lfs lft llf lll llo llp lls llt lly lof lol loo lop los lot loy lpf lpl lpo lpp lps lpt lsf lsl lso lsp lss lst ltf ltl lto ltp lts ltt lyf lyl lyo lys lyt of- off ofl ofo ofp ofs oft olf oll olo olp ols olt oly oo- oof ool ooo oop oos oot op- opf opl opo opp ops opt opy os- osf osl oso osp oss ost ot- otf otl oto otp ots ott oyl oyo oys p-p pff pfl pfo pfp pfs pft pfy plf pll plo plp pls plt ply pof pol poo pop pos pot poy ppf ppl ppo ppp pps ppt ps- psf psl pso psp pss pst psy pt- ptf ptl pto ptp pts ptt pty py- pyf pyl pyo pys pyt sff sfl sfo sfp sfs sft slf sll slo slp sls slt sly sof sol soo sop sos sot soy spf spl spo spp sps spt spy ss- ssf ssl sso ssp sss sst stf stl sto stp sts stt sty sy- syl syp sys syt tff tfl tfo tfp tfs tft tlf tll tlo tlp tls tlt to- tof tol too top tos tot toy tpf tpl tpo tpp tps tpt tsf tsl tso tsp tss tst tsy ttf ttl tto ttp tts ttt tty tyf tyl tyo typ tys tyt yff yfs yft yll yls ylt yly yof yol yoo yop yos yot yoy ypf ypl ypo yps ysl yso ysp yss yst ysy ytf ytl yto ytp yts ytt yyf yys yyt yyy