-al a-a a-b aaa aab aae aak aal aam aan ab- aba abb abe abk abl abm abn aea aeb aee aek ael aem aen aka akb ake akk akl akm akn al- ala alb ale alk all alm aln ama amb ame amk aml amm amn an- ana anb ane ank anl anm ann baa bab bae bak bal bam ban bba bbb bbe bbk bbl bbm bbn be- bea beb bee bek bel bem ben bka bkb bke bkk bkl bkm bkn bla blb ble blk bll blm bln bma bmb bme bmk bml bmm bmn bna bnb bne bnk bnl bnn eaa eab eae eak eal eam ean eba ebb ebe ebk ebl ebm ebn eea eeb eee eek eel eem een eka ekb eke ekl ela elb ele elk ell elm eln em- ema emb eme emk eml emm emn en- ena enb ene enk enl enm enn ka- kaa kab kae kak kal kam kan kba kbb kbe kbk kbl kbm kbn ke- kea keb kee kek kel kem ken kkb kke kkk kkl kkm kkn kl- kla klb klm kma kmb kme kmk kml kmm kn- kna kne knk knl knm knn la- laa lab lae lak lal lam lan lba lbb lbe lbk lbl lbm lea leb lee lek lel lem len lka lkb lkl lla llb lle llk lll llm lln lma lmb lme lmk lml lmm lmn lna lnb lne lnk lnl lnm lnn maa mab mae mak mal mam man mba mbb mbe mbk mbl mbm mea meb mee mek mel mem men mka mkb mke mkk mkl mkm mkn mla mlb mle mlk mll mlm mln mma mmb mme mmk mml mmm mmn mna mnb mne mnk mnl mnm mnn naa nab nae nak nal nam nan nba nbb nbe nbk nbl nbm nbn ne- nea neb nee nek nel nem nen nka nke nkk nkm nkn nla nlb nle nlk nll nlm nln nma nmb nme nmk nml nmm nmn nna nnb nne nnk nnl nnm nnn