-al a-a a-b a-i aaa aab aae aag aai aak aal ab- aba abb abe abg abi abk abl aea aeb aee aeg aei aek ael ag- aga agb age agg agi agk agl ai- aia aib aie aig aii aik ail aka akb ake akg aki akk akl al- ala alb ale alg ali alk all baa bab bae bag bai bak bal bba bbb bbe bbg bbi bbk bbl be- bea beb bee beg bei bek bel bga bgb bge bgg bgi bgk bgl bi- bia bib bie big bii bik bil bka bkb bke bkg bkk bkl bla blb ble blg bli blk bll eaa eab eae eag eai eak eal eba ebb ebe ebg ebi ebk ebl eea eeb eee eeg eek eel ega egb ege egg egi egl eia eib eie eig eii eik eil eka ekb eke ekg eki ekl ela elb ele elg eli elk ell gaa gab gae gag gai gak gal gba gbe gbg gbi gbk gbl ge- gea geb gee geg gei gek gel gga ggb ggg ggi gia gib gie gig gii gik gil gka gkb gla glb gle glg gli glk gll ia- iaa iab iae iag iai ial iba ibb ibe ibg ibi ibk ibl ie- iea iee ieg iei iek iel iga igb ige igg igi igk igl iia iib iie iii iil ika ikb ike iki ikk ikl il- ila ilb ile ilg ili ilk ill ka- kaa kab kae kag kai kak kal kba kbb kbe kbi kbk kbl ke- kea keb kee keg kei kek kel kga kgb kgi kgl kia kib kie kig kii kik kil kkb kke kki kkk kkl kl- kla klb klg kli la- laa lab lae lag lai lak lal lba lbb lbe lbg lbi lbk lbl lea leb lee leg lei lek lel lga lgb lge lgg lgi lgk lgl lia lib lie lig lii lik lil lka lkb lkg lkl lla llb lle llg lli llk lll