-al a-a a-b a-i a-t aaa aab aae aai aak aal aat ab- aba abb abe abi abk abl abt aea aeb aee aei aek ael aet ai- aia aib aie aii aik ail ait aka akb ake aki akk akl al- ala alb ale ali alk all alt at- ata atb ate ati atl att baa bab bae bai bak bal bat bba bbb bbe bbi bbk bbl bbt be- bea beb bee bei bek bel bet bi- bia bib bie bii bik bil bit bka bkb bke bkk bkl bkt bla blb ble bli blk bll blt bta btb bte bti btk btl btt eaa eab eae eai eak eal eat eba ebb ebe ebi ebk ebl ebt eea eeb eee eek eel eet eia eib eie eii eik eil eit eka ekb eke eki ekl ekt ela elb ele eli elk ell elt eta etb ete eti etk etl ett ia- iaa iab iae iai ial iat iba ibb ibe ibi ibk ibl ibt ie- iea iee iei iek iel iet iia iib iie iii iil iit ika ikb ike iki ikk ikl ikt il- ila ilb ile ili ilk ill ilt ita itb ite iti itk itl itt k-t ka- kaa kab kae kai kak kal kat kba kbb kbe kbi kbk kbl ke- kea keb kee kei kek kel ket kia kib kie kii kik kil kit kkb kke kki kkk kkl kkt kl- kla klb kli klt kta ktb kte ktk ktl ktt la- laa lab lae lai lak lal lat lba lbb lbe lbi lbk lbl lbt lea leb lee lei lek lel let lia lib lie lii lik lil lit lka lkb lkl lkt lla llb lle lli llk lll llt lta ltb lte lti ltk ltl ltt taa tab tae tai tak tal tat tba tbb tbe tbi tbk tbl tbt te- tea teb tee tei tek tel tet tia tib tie tii tik til tit tka tkb tke tkk tkl tkt tla tle tli tlk tll tlt tta ttb tte tti ttk ttl ttt