-al -ic -ol a-a a-b a-c a-i a-t aaa aab aac aai aak aal aan aao aar aat ab- aba abb abc abi abk abl abn abo abr abt ac- aca acb acc aci ack acl acn aco acr act ai- aia aib aic aii aik ail ain aio air ait aka akb akc aki akk akl akn ako akr al- ala alb alc ali alk all aln alo alr alt an- ana anb anc ani ank anl ann ano anr ant aoa aob aoc aoi aok aol aon aoo aor aot ar- ara arb arc ari ark arl arn aro arr art at- ata atb atc ati atl atn ato atr att baa bab bac bai bak bal ban bao bar bat bba bbb bbc bbi bbk bbl bbn bbo bbr bbt bca bcb bcc bci bck bcl bcn bco bcr bct bi- bia bib bic bii bik bil bin bio bir bit bka bkb bkc bkk bkl bkn bko bkr bkt bla blb blc bli blk bll bln blo blr blt bna bnb bnc bni bnk bnl bnn bno bnr bnt boa bob boc boi bok bol bon boo bor bot bra brb bri brk brl brn bro brr brt bta btb btc bti btk btl btn bto btr btt c-- caa cab cac cai cak cal can cao car cat cba cbb cbc cbi cbk cbl cbn cbo cbr cbt cca ccb ccc cci cck ccl ccn cco ccr cct ci- cia cib cic cii cik cil cin cio cir cit cka ckb ckc cki cko ckt cl- cla clb clc cli clk cll cln clo clr clt cn- cna cnb cnc cni cnl cnn cno cnr cnt co- coa cob coc coi cok col con coo cor cot cra crb crc cri crk crl crn cro crr crt cta ctb ctc cti ctk ctl ctn cto ctr ctt ia- iaa iab iac iai ial ian iao iar iat iba ibb ibc ibi ibk ibl ibn ibo ibr ibt ica icb icc ici ick icl icn ico icr ict iia iib iic iii iil iin iio iir iit ika ikb ikc iki ikk ikl iko ikr ikt il- ila ilb ilc ili ilk ill iln ilo ilr ilt in- ina inb inc ini ink inl inn ino inr int io- ioa iob ioc ioi iol ion ioo ior iot ir- ira irb irc iri irk irl irn iro irr irt ita itb itc iti itk itl itn ito itt k-t ka- kaa kab kac kai kak kal kan kao kar kat kba kbb kbc kbi kbk kbl kbn kbo kbr kca kcb kcc kci kck kcl kcn kcr kct kia kib kic kii kik kil kin kio kir kit kkb kkc kki kkk kkl kkn kkr kkt kl- kla klb klc kli klo klr klt kn- kna knc kni knk knl knn kno knr knt koa kob koc koi kok kol kon koo kor kot kra krc kri krk krl krn kro krr krt kta ktb ktc ktk ktl ktn kto ktr ktt la- laa lab lac lai lak lal lan lao lar lat lba lbb lbc lbi lbk lbl lbo lbr lbt lca lcb lcc lci lck lcl lcn lco lcr lct lia lib lic lii lik lil lin lio lir lit lka lkb lkl lkr lkt lla llb llc lli llk lll lln llo llr llt lna lnb lnc lni lnk lnl lnn lno lnr lnt loa lob loc loi lok lol lon loo lor lot lra lrb lrc lri lrk lrn lro lrr lrt lta ltb ltc lti ltk ltl lto ltr ltt n-i naa nab nac nai nak nal nan nao nar nat nba nbb nbc nbi nbk nbl nbn nbo nbr nbt nca ncb ncc nci nck ncl ncn nco ncr nct nia nib nic nii nik nil nin nio nir nit nka nkc nki nkk nkn nko nkr nkt nla nlb nlc nli nlk nll nln nlo nlr nlt nna nnb nnc nni nnk nnl nnn nno nnt no- noa nob noc noi nok nol non noo nor not nra nrb nrc nri nrk nrl nrn nro nrr nrt nta ntb ntc nti ntk ntn nto ntr ntt o-i oaa oab oac oai oak oal oan oao oar oat ob- oba obb obc obi obk obl obn obo obr obt oc- oca ocb occ oci ock ocl ocn oco ocr oct oia oib oic oii oik oil oin oio oir oit oka okb okc oki okk okl oko okr ola olb olc oli olk oll oln olo olt on- ona onb onc oni onk onl onn ono onr ont oo- ooa oob ooc ooi ook ool oon ooo oor oot or- ora orb orc ori ork orl orn oro orr ort ot- ota otb otc oti otk otl otn oto otr ott ra- raa rab rac rai rak ral ran rao rar rat rba rbb rbc rbi rbk rbl rbn rbo rbr rbt rca rcb rcc rci rcl rcn rco rcr rct ria rib ric rii rik ril rin rio rir rit rkb rkc rkk rko rkt rla rlc rli rll rln rlo rlr rlt rna rnb rnc rni rnn rno rnr rnt roa rob roc roi rok rol ron roo ror rot rra rrb rrc rri rrk rrl rrn rrr rrt rta rtb rtc rti rtk rtl rtn rto rtr rtt taa tab tac tai tak tal tan tao tar tat tba tbb tbc tbi tbk tbl tbn tbo tbr tbt tca tcb tcc tci tck tcl tcn tco tcr tct tia tib tic tii tik til tin tio tir tit tka tkb tkc tkk tkl tko tkr tkt tla tlc tli tlk tll tln tlo tlr tlt tna tnb tnc tni tnk tnl tnn tno tnr tnt to- toa tob toc toi tok tol ton too tor tot tra trb trc tri trk trl trn tro trr trt tta ttb ttc tti ttk ttl ttn tto ttr ttt