-al -er -ic a-a a-b a-c a-i aaa aab aac aae aai aal aan aar aas aau ab- aba abb abc abe abi abl abn abr abs abu ac- aca acb acc ace aci acl acn acr acs acu aea aeb aec aee aei ael aen aer aes aeu ai- aia aib aic aie aii ail ain air ais aiu al- ala alb alc ale ali all aln alr als alu an- ana anb anc ane ani anl ann anr ans anu ar- ara arb arc are ari arl arn arr ars aru as- asa asb asc ase asi asl asn asr ass asu au- aua aub auc aue aui aul aun aur aus b-u baa bab bac bae bai bal ban bar bas bau bba bbb bbc bbe bbi bbl bbn bbr bbs bbu bca bcb bcc bce bci bcl bcn bcr bcs bcu be- bea beb bec bee bei bel ben ber bes beu bi- bia bib bic bie bii bil bin bir bis biu bla blb blc ble bli bll bln blr bls blu bna bnb bnc bne bni bnl bnn bnr bns bnu bra brb bre bri brl brn brr brs bru bsa bsb bsc bse bsi bsl bsn bsr bss bsu bua bub buc bue bui bul bun bur bus buu c-- caa cab cac cae cai cal can car cas cau cba cbb cbc cbe cbi cbl cbn cbr cbs cbu cca ccb ccc cce cci ccl ccn ccr ccs ccu ce- cea ceb cec cee cei cel cen cer ces ceu ci- cia cib cic cie cii cil cin cir cis ciu cl- cla clb clc cle cli cll cln clr cls clu cn- cna cnb cnc cne cni cnl cnn cnr cns cnu cra crb crc cre cri crl crn crr crs cru csa csb csc cse csi csl csn csr css csu cua cub cuc cue cui cul cun cur cus cuu eaa eab eac eae eai eal ean ear eas eau eba ebb ebc ebe ebi ebl ebn ebr ebs ebu ec- eca ecb ecc ece eci ecl ecn ecr ecs ecu eea eeb eec eee eel een eer ees eia eib eic eie eii eil ein eir eis eiu ela elb elc ele eli ell eln elr els elu en- ena enb enc ene eni enl enn enr ens enu era erb erc ere eri erl ern err ers eru es- esa esb esc ese esi esl esn esr ess esu eu- eua eub euc eue eui eul eun eur eus ia- iaa iab iac iae iai ial ian iar ias iau iba ibb ibc ibe ibi ibl ibn ibr ibs ibu ica icb icc ice ici icl icn icr ics icu ie- iea iec iee iei iel ien ier ies iia iib iic iie iii iil iin iir iis iiu il- ila ilb ilc ile ili ill iln ilr ils ilu in- ina inb inc ine ini inl inn inr ins inu ir- ira irb irc ire iri irl irn irr irs iru is- isa isb isc ise isi isl isn isr iss isu iu- iua iub iuc iue iui iur ius la- laa lab lac lae lai lal lan lar las lau lba lbb lbc lbe lbi lbl lbr lbs lbu lca lcb lcc lce lci lcl lcn lcr lcs lcu lea leb lec lee lei lel len ler les leu lia lib lic lie lii lil lin lir lis liu lla llb llc lle lli lll lln llr lls llu lna lnb lnc lne lni lnl lnn lnr lns lnu lra lrb lrc lri lrn lrr lrs lru lsa lsb lsc lse lsi lsl lsn lsr lss lsu lua lub luc lue lui lul lun lur lus luu n-i naa nab nac nae nai nal nan nar nas nau nba nbb nbc nbe nbi nbl nbn nbr nbs nbu nca ncb ncc nce nci ncl ncn ncr ncs ncu ne- nea neb nec nee nei nel nen ner nes neu nia nib nic nie nii nil nin nir nis niu nla nlb nlc nle nli nll nln nlr nls nlu nna nnb nnc nne nni nnl nnn nns nnu nra nrb nrc nre nri nrl nrn nrr nrs nru nsa nsb nsc nse nsi nsl nsn nsr nss nsu nua nub nuc nue nui nul nun nur nus nuu ra- raa rab rac rae rai ral ran rar ras rau rba rbb rbc rbe rbi rbl rbn rbr rbs rbu rca rcb rcc rce rci rcl rcn rcr rcs rcu re- rea reb rec ree rei rel ren rer res reu ria rib ric rie rii ril rin rir ris rla rlc rle rli rll rln rlr rls rlu rna rnb rnc rni rnn rnr rns rnu rra rrb rrc rri rrl rrn rrr rrs rru rsa rsb rsc rse rsi rsl rsn rsr rss rsu rua rub ruc rue rui run rur rus ruu saa sab sac sae sai sal san sar sas sau sba sbb sbc sbe sbi sbl sbn sbr sbs sbu sca scb scc sce sci scl scn scr scs scu se- sea seb sec see sei sel sen ser ses seu sia sib sic sie sii sil sin sir sis siu sla slb slc sle sli sll sln slr sls slu sna snb snc sne sni snl snn snr sns snu sr- sra srb src sre sri srl srn srr srs ss- ssa ssb ssc sse ssi ssl ssn ssr sss ssu sua sub suc sue sui sul sun sur sus suu ua- uaa uab uac uae uai ual uan uar uas uau uba ubb ubc ube ubi ubl ubn ubr ubs ubu uca ucb ucc uce uci ucl ucn ucr ucs ucu uea ueb uec uee uei uel uen uer ues uia uib uic uie uii uil uin uir uis uiu ula ulb ulc ule uli ull uln ulr uls ulu un- una unb unc une uni unl unn unr uns unu ur- ura urb urc ure uri url urn