-al a-a a-b a-i a-t aaa aab aai aak aal aan aar aat ab- aba abb abi abk abl abn abr abt ai- aia aib aii aik ail ain air ait aka akb aki akk akl akn akr al- ala alb ali alk all aln alr alt an- ana anb ani ank anl ann anr ant ar- ara arb ari ark arl arn arr art at- ata atb ati atl atn atr att baa bab bai bak bal ban bar bat bba bbb bbi bbk bbl bbn bbr bbt bi- bia bib bii bik bil bin bir bit bka bkb bkk bkl bkn bkr bkt bla blb bli blk bll bln blr blt bna bnb bni bnk bnl bnn bnr bnt bra brb bri brk brl brn brr brt bta btb bti btk btl btn btr btt ia- iaa iab iai ial ian iar iat iba ibb ibi ibk ibl ibn ibr ibt iia iib iii iil iin iir iit ika ikb iki ikk ikl ikr ikt il- ila ilb ili ilk ill iln ilr ilt in- ina inb ini ink inl inn inr int ir- ira irb iri irk irl irn irr irt ita itb iti itk itl itn itt k-t ka- kaa kab kai kak kal kan kar kat kba kbb kbi kbk kbl kbn kbr kia kib kii kik kil kin kir kit kkb kki kkk kkl kkn kkr kkt kl- kla klb kli klr klt kn- kna kni knk knl knn knr knt kra kri krk krl krn krr krt kta ktb ktk ktl ktn ktr ktt la- laa lab lai lak lal lan lar lat lba lbb lbi lbk lbl lbr lbt lia lib lii lik lil lin lir lit lka lkb lkl lkr lkt lla llb lli llk lll lln llr llt lna lnb lni lnk lnl lnn lnr lnt lra lrb lri lrk lrn lrr lrt lta ltb lti ltk ltl ltr ltt n-i naa nab nai nak nal nan nar nat nba nbb nbi nbk nbl nbn nbr nbt nia nib nii nik nil nin nir nit nka nki nkk nkn nkr nkt nla nlb nli nlk nll nln nlr nlt nna nnb nni nnk nnl nnn nnt nra nrb nri nrk nrl nrn nrr nrt nta ntb nti ntk ntn ntr ntt ra- raa rab rai rak ral ran rar rat rba rbb rbi rbk rbl rbn rbr rbt ria rib rii rik ril rin rir rit rkb rkk rkt rla rli rll rln rlr rlt rna rnb rni rnn rnr rnt rra rrb rri rrk rrl rrn rrr rrt rta rtb rti rtk rtl rtn rtr rtt taa tab tai tak tal tan tar tat tba tbb tbi tbk tbl tbn tbr tbt tia tib tii tik til tin tir tit tka tkb tkk tkl tkr tkt tla tli tlk tll tln tlr tlt tna tnb tni tnk tnl tnn tnr tnt tra trb tri trk trl trn trr trt tta ttb tti ttk ttl ttn ttr ttt