-al a-a a-t aaa aaf aag aal aas aat af- afa aff afg afl afs aft ag- aga agf agg agl ags agt al- ala alf alg all als alt as- asa asf asg asl ass ast at- ata atf atg atl ats att faa faf fag fal fas fat ffa fff ffg ffl ffs fft fga fgf fgg fgl fgs fgt fla flf flg fll fls flt fsa fsf fsg fsl fss fst fta ftf ftg ftl fts ftt gaa gaf gag gal gas gat gfa gff gfl gfs gft gga ggg ggs ggt gla glf glg gll gls glt gsa gsf gsg gsl gss gst gta gtf gtg gtl gts gtt la- laa laf lag lal las lat lfa lff lfg lfl lfs lft lga lgf lgg lgl lgs lgt lla llf llg lll lls llt lsa lsf lsg lsl lss lst lta ltf ltg ltl lts ltt saa saf sag sal sas sat sfa sff sfg sfl sfs sft sga sgf sgg sgl sgs sgt sla slf slg sll sls slt ss- ssa ssf ssg ssl sss sst sta stf stg stl sts stt taa taf tag tal tas tat tfa tff tfg tfl tfs tft tga tgf tgg tgl tgs tgt tla tlf tlg tll tls tlt tsa tsf tsg tsl tss tst tta ttf ttg ttl tts ttt