-al -ol a-a a-b a-i a-t aaa aab aai aak aal aan aao aar aat ab- aba abb abi abk abl abn abo abr abt ai- aia aib aii aik ail ain aio air ait aka akb aki akk akl akn ako akr al- ala alb ali alk all aln alo alr alt an- ana anb ani ank anl ann ano anr ant aoa aob aoi aok aol aon aoo aor aot ar- ara arb ari ark arl arn aro arr art at- ata atb ati atl atn ato atr att baa bab bai bak bal ban bao bar bat bba bbb bbi bbk bbl bbn bbo bbr bbt bi- bia bib bii bik bil bin bio bir bit bka bkb bkk bkl bkn bko bkr bkt bla blb bli blk bll bln blo blr blt bna bnb bni bnk bnl bnn bno bnr bnt boa bob boi bok bol bon boo bor bot bra brb bri brk brl brn bro brr brt bta btb bti btk btl btn bto btr btt ia- iaa iab iai ial ian iao iar iat iba ibb ibi ibk ibl ibn ibo ibr ibt iia iib iii iil iin iio iir iit ika ikb iki ikk ikl iko ikr ikt il- ila ilb ili ilk ill iln ilo ilr ilt in- ina inb ini ink inl inn ino inr int io- ioa iob ioi iol ion ioo ior iot ir- ira irb iri irk irl irn iro irr irt ita itb iti itk itl itn ito itt k-t ka- kaa kab kai kak kal kan kao kar kat kba kbb kbi kbk kbl kbn kbo kbr kia kib kii kik kil kin kio kir kit kkb kki kkk kkl kkn kkr kkt kl- kla klb kli klo klr klt kn- kna kni knk knl knn kno knr knt koa kob koi kok kol kon koo kor kot kra kri krk krl krn kro krr krt kta ktb ktk ktl ktn kto ktr ktt la- laa lab lai lak lal lan lao lar lat lba lbb lbi lbk lbl lbo lbr lbt lia lib lii lik lil lin lio lir lit lka lkb lkl lkr lkt lla llb lli llk lll lln llo llr llt lna lnb lni lnk lnl lnn lno lnr lnt loa lob loi lok lol lon loo lor lot lra lrb lri lrk lrn lro lrr lrt lta ltb lti ltk ltl lto ltr ltt n-i naa nab nai nak nal nan nao nar nat nba nbb nbi nbk nbl nbn nbo nbr nbt nia nib nii nik nil nin nio nir nit nka nki nkk nkn nko nkr nkt nla nlb nli nlk nll nln nlo nlr nlt nna nnb nni nnk nnl nnn nno nnt no- noa nob noi nok nol non noo nor not nra nrb nri nrk nrl nrn nro nrr nrt nta ntb nti ntk ntn nto ntr ntt o-i oaa oab oai oak oal oan oao oar oat ob- oba obb obi obk obl obn obo obr obt oia oib oii oik oil oin oio oir oit oka okb oki okk okl oko okr ola olb oli olk oll oln olo olt on- ona onb oni onk onl onn ono onr ont oo- ooa oob ooi ook ool oon ooo oor oot or- ora orb ori ork orl orn oro orr ort ot- ota otb oti otk otl otn oto otr ott ra- raa rab rai rak ral ran rao rar rat rba rbb rbi rbk rbl rbn rbo rbr rbt ria rib rii rik ril rin rio rir rit rkb rkk rko rkt rla rli rll rln rlo rlr rlt rna rnb rni rnn rno rnr rnt roa rob roi rok rol ron roo ror rot rra rrb rri rrk rrl rrn rrr rrt rta rtb rti rtk rtl rtn rto rtr rtt taa tab tai tak tal tan tao tar tat tba tbb tbi tbk tbl tbn tbo tbr tbt tia tib tii tik til tin tio tir tit tka tkb tkk tkl tko tkr tkt tla tli tlk tll tln tlo tlr tlt tna tnb tni tnk tnl tnn tno tnr tnt to- toa tob toi tok tol ton too tor tot tra trb tri trk trl trn tro trr trt tta ttb tti ttk ttl ttn tto ttr ttt