-al a-a a-b a-i a-t aaa aab aaf aag aai aal aar aas aat ab- aba abb abf abg abi abl abr abs abt af- afa afb aff afg afi afl afr afs aft ag- aga agb agf agg agi agl agr ags agt ai- aia aib aif aig aii ail air ais ait al- ala alb alf alg ali all alr als alt ar- ara arb arf arg ari arl arr ars art as- asa asb asf asg asi asl asr ass ast at- ata atb atf atg ati atl atr ats att baa bab baf bag bai bal bar bas bat bba bbb bbf bbg bbi bbl bbr bbs bbt bfa bfb bff bfg bfi bfl bfr bfs bft bga bgb bgf bgg bgi bgl bgr bgs bgt bi- bia bib bif big bii bil bir bis bit bla blb blf blg bli bll blr bls blt bra brb brf brg bri brl brr brs brt bsa bsb bsf bsg bsi bsl bsr bss bst bta btb btf btg bti btl btr bts btt faa fab faf fag fai fal far fas fat fba fbb fbf fbg fbi fbl fbr fbs fbt ffa fff ffg ffi ffl ffr ffs fft fga fgb fgf fgg fgi fgl fgr fgs fgt fia fib fif fig fii fil fir fis fit fla flb flf flg fli fll flr fls flt fra frb frf frg fri frl frr frs frt fsa fsb fsf fsg fsi fsl fsr fss fst fta ftb ftf ftg fti ftl ftr fts ftt gaa gab gaf gag gai gal gar gas gat gba gbf gbg gbi gbl gbr gbs gbt gfa gfb gff gfi gfl gfr gfs gft gga ggb ggg ggi ggr ggs ggt gia gib gif gig gii gil gir gis git gla glb glf glg gli gll glr gls glt gra grb grf grg gri grl grr grs grt gsa gsb gsf gsg gsi gsl gsr gss gst gta gtb gtf gtg gti gtl gtr gts gtt i-f ia- iaa iab iaf iag iai ial iar ias iat iba ibb ibf ibg ibi ibl ibr ibs ibt ifa ifb iff ifg ifi ifl ifr ifs ift iga igb igf igg igi igl igr igs igt iia iib iif iii iil iir iis iit il- ila ilb ilf ilg ili ill ilr ils ilt ir- ira irb irf irg iri irl irr irs irt is- isa isb isf isg isi isl isr iss ist ita itb itf itg iti itl its itt la- laa lab laf lag lai lal lar las lat lba lbb lbf lbg lbi lbl lbr lbs lbt lfa lfb lff lfg lfi lfl lfr lfs lft lga lgb lgf lgg lgi lgl lgr lgs lgt lia lib lif lig lii lil lir lis lit lla llb llf llg lli lll llr lls llt lra lrb lrf lrg lri lrr lrs lrt lsa lsb lsf lsg lsi lsl lsr lss lst lta ltb ltf ltg lti ltl ltr lts ltt ra- raa rab raf rag rai ral rar ras rat rba rbb rbf rbg rbi rbl rbr rbs rbt rfa rfb rff rfg rfi rfl rfr rfs rft rga rgb rgf rgg rgi rgr rgs rgt ria rib rif rig rii ril rir ris rit rla rlf rlg rli rll rlr rls rlt rra rrb rrf rrg rri rrl rrr rrs rrt rsa rsb rsf rsg rsi rsl rsr rss rst rta rtb rtf rtg rti rtl rtr rts rtt saa sab saf sag sai sal sar sas sat sba sbb sbf sbg sbi sbl sbr sbs sbt sfa sfb sff sfg sfi sfl sfr sfs sft sga sgb sgf sgg sgi sgl sgr sgs sgt sia sib sif sig sii sil sir sis sit sla slb slf slg sli sll slr sls slt sr- sra srb srf srg sri srl srr srs srt ss- ssa ssb ssf ssg ssi ssl ssr sss sst sta stb stf stg sti stl str sts stt taa tab taf tag tai tal tar tas tat tba tbb tbf tbg tbi tbl tbr tbs tbt tfa tfb tff tfg tfi tfl tfr tfs tft tga tgb tgf tgg tgi tgl tgr tgs tgt tia tib tif tig tii til tir tis tit tla tlf tlg tli tll tlr tls tlt tra trb trf trg tri trl trr trs trt tsa tsb tsf tsg tsi tsl tsr tss tst tta ttb ttf ttg tti ttl ttr tts ttt

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