-al -ol a-a a-t aaa aaf aag aal aao aar aas aat af- afa aff afg afl afo afr afs aft ag- aga agf agg agl ago agr ags agt al- ala alf alg all alo alr als alt aoa aof aog aol aoo aor aos aot ar- ara arf arg arl aro arr ars art as- asa asf asg asl aso asr ass ast at- ata atf atg atl ato atr ats att faa faf fag fal fao far fas fat ffa fff ffg ffl ffo ffr ffs fft fga fgf fgg fgl fgr fgs fgt fla flf flg fll flo flr fls flt foa fof fog fol foo for fos fot fra frf frg frl fro frr frs frt fsa fsf fsg fsl fso fsr fss fst fta ftf ftg ftl fto ftr fts ftt gaa gaf gag gal gao gar gas gat gfa gff gfl gfo gfr gfs gft gga ggg ggo ggr ggs ggt gla glf glg gll glo glr gls glt goa gof gog gol goo gor gos got gra grf grg grl gro grr grs grt gsa gsf gsg gsl gso gsr gss gst gta gtf gtg gtl gto gtr gts gtt la- laa laf lag lal lao lar las lat lfa lff lfg lfl lfo lfr lfs lft lga lgf lgg lgl lgo lgr lgs lgt lla llf llg lll llo llr lls llt loa lof log lol loo lor los lot lra lrf lrg lro lrr lrs lrt lsa lsf lsg lsl lso lsr lss lst lta ltf ltg ltl lto ltr lts ltt oaa oaf oag oal oao oar oas oat of- ofa off ofg ofl ofo ofr ofs oft oga ogf ogg ogl ogo ogs ogt ola olf olg oll olo ols olt oo- ooa oof oog ool ooo oor oos oot or- ora orf org orl oro orr ors ort os- osa osf osg osl oso osr oss ost ot- ota otf otg otl oto otr ots ott ra- raa raf rag ral rao rar ras rat rfa rff rfg rfl rfo rfr rfs rft rga rgf rgg rgo rgr rgs rgt rla rlf rlg rll rlo rlr rls rlt roa rof rog rol roo ror ros rot rra rrf rrg rrl rrr rrs rrt rsa rsf rsg rsl rso rsr rss rst rta rtf rtg rtl rto rtr rts rtt saa saf sag sal sao sar sas sat sfa sff sfg sfl sfo sfr sfs sft sga sgf sgg sgl sgo sgr sgs sgt sla slf slg sll slo slr sls slt soa sof sog sol soo sor sos sot sr- sra srf srg srl sro srr srs srt ss- ssa ssf ssg ssl sso ssr sss sst sta stf stg stl sto str sts stt taa taf tag tal tao tar tas tat tfa tff tfg tfl tfo tfr tfs tft tga tgf tgg tgl tgo tgr tgs tgt tla tlf tlg tll tlo tlr tls tlt to- toa tof tog tol too tor tos tot tra trf trg trl tro trr trs trt tsa tsf tsg tsl tso tsr tss tst tta ttf ttg ttl tto ttr tts ttt