-al -ol a-a a-t aaa aaf aal aao aas aat af- afa aff afl afo afs aft al- ala alf all alo als alt aoa aof aol aoo aos aot as- asa asf asl aso ass ast at- ata atf atl ato ats att faa faf fal fao fas fat ffa fff ffl ffo ffs fft fla flf fll flo fls flt foa fof fol foo fos fot fsa fsf fsl fso fss fst fta ftf ftl fto fts ftt la- laa laf lal lao las lat lfa lff lfl lfo lfs lft lla llf lll llo lls llt loa lof lol loo los lot lsa lsf lsl lso lss lst lta ltf ltl lto lts ltt oaa oaf oal oao oas oat of- ofa off ofl ofo ofs oft ola olf oll olo ols olt oo- ooa oof ool ooo oos oot os- osa osf osl oso oss ost ot- ota otf otl oto ots ott saa saf sal sao sas sat sfa sff sfl sfo sfs sft sla slf sll slo sls slt soa sof sol soo sos sot ss- ssa ssf ssl sso sss sst sta stf stl sto sts stt taa taf tal tao tas tat tfa tff tfl tfo tfs tft tla tlf tll tlo tls tlt to- toa tof tol too tos tot tsa tsf tsl tso tss tst tta ttf ttl tto tts ttt