-ol fff ffi ffl ffm ffo ffs fft fif fii fil fim fis fit flf fli fll flm flo fls flt fmf fmi fml fmm fmo fms fmt fof foi fol fom foo fos fot fsf fsi fsl fsm fso fss fst ftf fti ftl ftm fto fts ftt i-f iff ifi ifl ifm ifo ifs ift iif iii iil iim iio iis iit il- ilf ili ill ilm ilo ils ilt im- imf imi iml imm imo ims imt io- iof ioi iol iom ioo ios iot is- isf isi isl ism iso iss ist itf iti itl itm ito its itt lff lfi lfl lfm lfo lfs lft lif lii lil lim lio lis lit llf lli lll llm llo lls llt lmf lmi lml lmm lmo lms lmt lof loi lol lom loo los lot lsf lsi lsl lsm lso lss lst ltf lti ltl ltm lto lts ltt m-f m-o mff mfi mfl mfm mfo mfs mft mi- mif mii mil mim mio mis mit mlf mli mll mlm mlo mls mlt mmf mmi mml mmm mmo mms mmt mof moi mol mom moo mos mot msf msi msl msm mso mss mst mtf mti mtl mtm mto mts mtt o-i of- off ofi ofl ofm ofo ofs oft oif oii oil oim oio ois oit olf oli oll olm olo ols olt om- omf omi oml omm omo oms omt oo- oof ooi ool oom ooo oos oot os- osf osi osl osm oso oss ost ot- otf oti otl otm oto ots ott sff sfi sfl sfm sfo sfs sft sif sii sil sim sio sis sit slf sli sll slm slo sls slt smf smi sml smm smo sms smt sof soi sol som soo sos sot ss- ssf ssi ssl ssm sso sss sst stf sti stl stm sto sts stt tff tfi tfl tfm tfo tfs tft tif tii til tim tio tis tit tlf tli tll tlm tlo tls tlt tmf tmi tml tmm tmo tms tmt to- tof toi tol tom too tos tot tsf tsi tsl tsm tso tss tst ttf tti ttl ttm tto tts ttt