-al -er a-a a-b aaa aab aae aaf aal aam aan aar ab- aba abb abe abf abl abm abn abr aea aeb aee aef ael aem aen aer af- afa afb afe aff afl afm afn afr al- ala alb ale alf all alm aln alr ama amb ame amf aml amm amn amr an- ana anb ane anf anl anm ann anr ar- ara arb are arf arl arm arn arr baa bab bae baf bal bam ban bar bba bbb bbe bbf bbl bbm bbn bbr be- bea beb bee bef bel bem ben ber bfa bfb bfe bff bfl bfm bfn bfr bla blb ble blf bll blm bln blr bma bmb bme bmf bml bmm bmn bmr bna bnb bne bnf bnl bnn bnr bra brb bre brf brl brm brn brr eaa eab eae eaf eal eam ean ear eba ebb ebe ebf ebl ebm ebn ebr eea eeb eee eef eel eem een eer ef- efa efb efe eff efl efm efr ela elb ele elf ell elm eln elr em- ema emb eme emf eml emm emn emr en- ena enb ene enf enl enm enn enr era erb ere erf erl erm ern err faa fab fae faf fal fam fan far fba fbb fbe fbf fbl fbm fbn fbr fea feb fee fef fel fem fen fer ffa ffe fff ffl ffm ffn ffr fla flb fle flf fll flm fln flr fma fmb fme fmf fml fmm fmn fmr fna fnb fne fnf fnl fnm fnn fnr fra frb fre frf frl frm frn frr la- laa lab lae laf lal lam lan lar lba lbb lbe lbf lbl lbm lbr lea leb lee lef lel lem len ler lfa lfb lfe lff lfl lfm lfn lfr lla llb lle llf lll llm lln llr lma lmb lme lmf lml lmm lmn lmr lna lnb lne lnl lnm lnn lnr lra lrb lrf lrm lrn lrr m-f m-r maa mab mae maf mal mam man mar mba mbb mbe mbf mbl mbm mbr mea meb mee mef mel mem men mer mfa mfb mfe mff mfl mfm mfn mfr mla mlb mle mlf mll mlm mln mlr mma mmb mme mmf mml mmm mmn mmr mna mnb mne mnf mnl mnm mnn mnr mra mrb mre mrf mrl mrm mrn mrr naa nab nae naf nal nam nan nar nba nbb nbe nbf nbl nbm nbn nbr ne- nea neb nee nef nel nem nen ner nfa nfb nfe nff nfl nfn nfr nla nlb nle nlf nll nlm nln nlr nma nmb nme nml nmm nmn nmr nna nnb nne nnf nnl nnm nnn nra nrb nre nrf nrl nrm nrn nrr ra- raa rab rae raf ral ram ran rar rba rbb rbe rbf rbl rbm rbn rbr re- rea reb ree ref rel rem ren rer rfa rfb rfe rff rfl rfm rfn rfr rla rle rlf rll rlm rln rlr rma rmb rme rmf rml rmm rmn rmr rna rnb rnm rnn rnr rra rrb rrf rrl rrm rrn rrr