-al -er a-a a-b a-t aaa aab aae aaf aal aam aan aar aat ab- aba abb abe abf abl abm abn abr abt aea aeb aee aef ael aem aen aer aet af- afa afb afe aff afl afm afn afr aft al- ala alb ale alf all alm aln alr alt ama amb ame amf aml amm amn amr amt an- ana anb ane anf anl anm ann anr ant ar- ara arb are arf arl arm arn arr art at- ata atb ate atf atl atm atn atr att baa bab bae baf bal bam ban bar bat bba bbb bbe bbf bbl bbm bbn bbr bbt be- bea beb bee bef bel bem ben ber bet bfa bfb bfe bff bfl bfm bfn bfr bft bla blb ble blf bll blm bln blr blt bma bmb bme bmf bml bmm bmn bmr bmt bna bnb bne bnf bnl bnn bnr bnt bra brb bre brf brl brm brn brr brt bta btb bte btf btl btm btn btr btt eaa eab eae eaf eal eam ean ear eat eba ebb ebe ebf ebl ebm ebn ebr ebt eea eeb eee eef eel eem een eer eet ef- efa efb efe eff efl efm efr eft ela elb ele elf ell elm eln elr elt em- ema emb eme emf eml emm emn emr emt en- ena enb ene enf enl enm enn enr ent era erb ere erf erl erm ern err ert eta etb ete etf etl etm etn etr ett faa fab fae faf fal fam fan far fat fba fbb fbe fbf fbl fbm fbn fbr fbt fea feb fee fef fel fem fen fer fet ffa ffe fff ffl ffm ffn ffr fft fla flb fle flf fll flm fln flr flt fma fmb fme fmf fml fmm fmn fmr fmt fna fnb fne fnf fnl fnm fnn fnr fnt fra frb fre frf frl frm frn frr frt fta ftb fte ftf ftl ftm ftn ftr ftt la- laa lab lae laf lal lam lan lar lat lba lbb lbe lbf lbl lbm lbr lbt lea leb lee lef lel lem len ler let lfa lfb lfe lff lfl lfm lfn lfr lft lla llb lle llf lll llm lln llr llt lma lmb lme lmf lml lmm lmn lmr lmt lna lnb lne lnl lnm lnn lnr lnt lra lrb lrf lrm lrn lrr lrt lta ltb lte ltf ltl ltm ltr ltt m-f m-r maa mab mae maf mal mam man mar mat mba mbb mbe mbf mbl mbm mbr mbt mea meb mee mef mel mem men mer met mfa mfb mfe mff mfl mfm mfn mfr mft mla mlb mle mlf mll mlm mln mlr mlt mma mmb mme mmf mml mmm mmn mmr mmt mna mnb mne mnf mnl mnm mnn mnr mnt mra mrb mre mrf mrl mrm mrn mrr mrt mta mtb mte mtf mtl mtm mtn mtr mtt naa nab nae naf nal nam nan nar nat nba nbb nbe nbf nbl nbm nbn nbr nbt ne- nea neb nee nef nel nem nen ner net nfa nfb nfe nff nfl nfn nfr nft nla nlb nle nlf nll nlm nln nlr nlt nma nmb nme nml nmm nmn nmr nmt nna nnb nne nnf nnl nnm nnn nnt nra nrb nre nrf nrl nrm nrn nrr nrt nta ntb nte ntf ntm ntn ntr ntt ra- raa rab rae raf ral ram ran rar rat rba rbb rbe rbf rbl rbm rbn rbr rbt re- rea reb ree ref rel rem ren rer ret rfa rfb rfe rff rfl rfm rfn rfr rft rla rle rlf rll rlm rln rlr rlt rma rmb rme rmf rml rmm rmn rmr rmt rna rnb rnm rnn rnr rnt rra rrb rrf rrl rrm rrn rrr rrt rta rtb rte rtf rtl rtm rtn rtr rtt taa tab tae taf tal tam tan tar tat tba tbb tbe tbf tbl tbm tbn tbr tbt te- tea teb tee tef tel tem ten ter tet tfa tfb tfe tff tfl tfm tfn tfr tft tla tle tlf tll tlm tln tlr tlt tma tmb tme tmf tml tmm tmn tmr tmt tna tnb tne tnf tnl tnm tnn tnr tnt tra trb tre trf trl trm trn trr trt tta ttb tte ttf ttl ttm ttn ttr ttt