-al a-a a-b aaa aab aae aak aal aam ab- aba abb abe abk abl abm aea aeb aee aek ael aem aka akb ake akk akl akm al- ala alb ale alk all alm ama amb ame amk aml amm baa bab bae bak bal bam bba bbb bbe bbk bbl bbm be- bea beb bee bek bel bem bka bkb bke bkk bkl bkm bla blb ble blk bll blm bma bmb bme bmk bml bmm eaa eab eae eak eal eam eba ebb ebe ebk ebl ebm eea eeb eee eek eel eem eka ekb eke ekl ela elb ele elk ell elm em- ema emb eme emk eml emm ka- kaa kab kae kak kal kam kba kbb kbe kbk kbl kbm ke- kea keb kee kek kel kem kkb kke kkk kkl kkm kl- kla klb klm kma kmb kme kmk kml kmm la- laa lab lae lak lal lam lba lbb lbe lbk lbl lbm lea leb lee lek lel lem lka lkb lkl lla llb lle llk lll llm lma lmb lme lmk lml lmm maa mab mae mak mal mam mba mbb mbe mbk mbl mbm mea meb mee mek mel mem mka mkb mke mkk mkl mkm mla mlb mle mlk mll mlm mma mmb mme mmk mml mmm