-al -er -ic a-a a-b a-c a-i aaa aab aac aae aai aak aal aan aar aau ab- aba abb abc abe abi abk abl abn abr abu ac- aca acb acc ace aci ack acl acn acr acu aea aeb aec aee aei aek ael aen aer aeu ai- aia aib aic aie aii aik ail ain air aiu aka akb akc ake aki akk akl akn akr aku al- ala alb alc ale ali alk all aln alr alu an- ana anb anc ane ani ank anl ann anr anu ar- ara arb arc are ari ark arl arn arr aru au- aua aub auc aue aui auk aul aun aur b-u baa bab bac bae bai bak bal ban bar bau bba bbb bbc bbe bbi bbk bbl bbn bbr bbu bca bcb bcc bce bci bck bcl bcn bcr bcu be- bea beb bec bee bei bek bel ben ber beu bi- bia bib bic bie bii bik bil bin bir biu bka bkb bkc bke bkk bkl bkn bkr bla blb blc ble bli blk bll bln blr blu bna bnb bnc bne bni bnk bnl bnn bnr bnu bra brb bre bri brk brl brn brr bru bua bub buc bue bui buk bul bun bur buu c-- caa cab cac cae cai cak cal can car cau cba cbb cbc cbe cbi cbk cbl cbn cbr cbu cca ccb ccc cce cci cck ccl ccn ccr ccu ce- cea ceb cec cee cei cek cel cen cer ceu ci- cia cib cic cie cii cik cil cin cir ciu cka ckb ckc cki cl- cla clb clc cle cli clk cll cln clr clu cn- cna cnb cnc cne cni cnl cnn cnr cnu cra crb crc cre cri crk crl crn crr cru cua cub cuc cue cui cuk cul cun cur cuu eaa eab eac eae eai eak eal ean ear eau eba ebb ebc ebe ebi ebk ebl ebn ebr ebu ec- eca ecb ecc ece eci eck ecl ecn ecr ecu eea eeb eec eee eek eel een eer eia eib eic eie eii eik eil ein eir eiu eka ekb ekc eke eki ekl ekr eku ela elb elc ele eli elk ell eln elr elu en- ena enb enc ene eni enk enl enn enr enu era erb erc ere eri erk erl ern err eru eu- eua eub euc eue eui eul eun eur ia- iaa iab iac iae iai ial ian iar iau iba ibb ibc ibe ibi ibk ibl ibn ibr ibu ica icb icc ice ici ick icl icn icr icu ie- iea iec iee iei iek iel ien ier iia iib iic iie iii iil iin iir iiu ika ikb ikc ike iki ikk ikl ikr iku il- ila ilb ilc ile ili ilk ill iln ilr ilu in- ina inb inc ine ini ink inl inn inr inu ir- ira irb irc ire iri irk irl irn irr iru iu- iua iub iuc iue iui iur ka- kaa kab kac kae kai kak kal kan kar kau kba kbb kbc kbe kbi kbk kbl kbn kbr kbu kca kcb kcc kce kci kck kcl kcn kcr kcu ke- kea keb kec kee kei kek kel ken ker kia kib kic kie kii kik kil kin kir kiu kkb kkc kke kki kkk kkl kkn kkr kku kl- kla klb klc kli klr klu kn- kna knc kne kni knk knl knn knr knu kra krc kri krk krl krn krr kru kub kuc kue kui kuk kul kun kur kuu la- laa lab lac lae lai lak lal lan lar lau lba lbb lbc lbe lbi lbk lbl lbr lbu lca lcb lcc lce lci lck lcl lcn lcr lcu lea leb lec lee lei lek lel len ler leu lia lib lic lie lii lik lil lin lir liu lka lkb lkl lkr lla llb llc lle lli llk lll lln llr llu lna lnb lnc lne lni lnk lnl lnn lnr lnu lra lrb lrc lri lrk lrn lrr lru lua lub luc lue lui luk lul lun lur luu n-i naa nab nac nae nai nak nal nan nar nau nba nbb nbc nbe nbi nbk nbl nbn nbr nbu nca ncb ncc nce nci nck ncl ncn ncr ncu ne- nea neb nec nee nei nek nel nen ner neu nia nib nic nie nii nik nil nin nir niu nka nkc nke nki nkk nkn nkr nku nla nlb nlc nle nli nlk nll nln nlr nlu nna nnb nnc nne nni nnk nnl nnn nnu nra nrb nrc nre nri nrk nrl nrn nrr nru nua nub nuc nue nui nuk nul nun nur nuu ra- raa rab rac rae rai rak ral ran rar rau rba rbb rbc rbe rbi rbk rbl rbn rbr rbu rca rcb rcc rce rci rcl rcn rcr rcu re- rea reb rec ree rei rek rel ren rer reu ria rib ric rie rii rik ril rin rir rkb rkc rke rkk rku rla rlc rle rli rll rln rlr rlu rna rnb rnc rni rnn rnr rnu rra rrb rrc rri rrk rrl rrn rrr rru rua rub ruc rue rui ruk run rur ruu ua- uaa uab uac uae uai uak ual uan uar uau uba ubb ubc ube ubi ubk ubl ubn ubr ubu uca ucb ucc uce uci uck ucl ucn ucr ucu uea ueb uec uee uei uel uen uer uia uib uic uie uii uil uin uir uiu uka ukb ukc uke uki ukk ukl ukn ukr uku ula ulb ulc ule uli ulk ull uln ulr ulu un- una unb unc une uni unk unl unn unr unu ur- ura urb urc ure uri urk url urn urr uru uua uuc uue uun uur uuu