-ol fff ffi ffl ffo ffp ffs fft fif fii fil fip fis fit flf fli fll flo flp fls flt fof foi fol foo fop fos fot fpi fpl fpo fpp fps fpt fsf fsi fsl fso fsp fss fst ftf fti ftl fto ftp fts ftt i-f iff ifi ifl ifo ifp ifs ift iif iii iil iio iip iis iit il- ilf ili ill ilo ilp ils ilt io- iof ioi iol ioo iop ios iot ipf ipi ipl ipo ipp ips ipt is- isf isi isl iso isp iss ist itf iti itl ito itp its itt l-p lff lfi lfl lfo lfp lfs lft lif lii lil lio lip lis lit llf lli lll llo llp lls llt lof loi lol loo lop los lot lpf lpi lpl lpo lpp lps lpt lsf lsi lsl lso lsp lss lst ltf lti ltl lto ltp lts ltt o-i of- off ofi ofl ofo ofp ofs oft oif oii oil oio oip ois oit olf oli oll olo olp ols olt oo- oof ooi ool ooo oop oos oot op- opf opi opl opo opp ops opt os- osf osi osl oso osp oss ost ot- otf oti otl oto otp ots ott p-p pff pfi pfl pfo pfp pfs pft pif pii pil pio pip pis pit plf pli pll plo plp pls plt pof poi pol poo pop pos pot ppf ppi ppl ppo ppp pps ppt ps- psf psi psl pso psp pss pst pt- ptf pti ptl pto ptp pts ptt sff sfi sfl sfo sfp sfs sft sif sii sil sio sip sis sit slf sli sll slo slp sls slt sof soi sol soo sop sos sot spf spi spl spo spp sps spt ss- ssf ssi ssl sso ssp sss sst stf sti stl sto stp sts stt tff tfi tfl tfo tfp tfs tft tif tii til tio tip tis tit tlf tli tll tlo tlp tls tlt to- tof toi tol too top tos tot tpf tpi tpl tpo tpp tps tpt tsf tsi tsl tso tsp tss tst ttf tti ttl tto ttp tts ttt