-al -er -ol a-a a-b a-c aaa aab aac aae aaf aal aam aan aao aar aau ab- aba abb abc abe abf abl abm abn abo abr abu ac- aca acb acc ace acf acl acm acn aco acr acu aea aeb aec aee aef ael aem aen aeo aer aeu af- afa afb afc afe aff afl afm afn afo afr afu al- ala alb alc ale alf all alm aln alo alr alu ama amb amc ame amf aml amm amn amo amr amu an- ana anb anc ane anf anl anm ann ano anr anu aoa aob aoc aoe aof aol aom aon aoo aor aou ar- ara arb arc are arf arl arm arn aro arr aru au- aua aub auc aue auf aul aum aun auo aur b-u baa bab bac bae baf bal bam ban bao bar bau bba bbb bbc bbe bbf bbl bbm bbn bbo bbr bbu bca bcb bcc bce bcf bcl bcm bcn bco bcr bcu be- bea beb bec bee bef bel bem ben beo ber beu bfa bfb bfc bfe bff bfl bfm bfn bfo bfr bfu bla blb blc ble blf bll blm bln blo blr blu bma bmb bmc bme bmf bml bmm bmn bmo bmr bmu bna bnb bnc bne bnf bnl bnn bno bnr bnu boa bob boc boe bof bol bom bon boo bor bou bra brb bre brf brl brm brn bro brr bru bua bub buc bue buf bul bum bun buo bur buu c-- caa cab cac cae caf cal cam can cao car cau cba cbb cbc cbe cbf cbl cbm cbn cbo cbr cbu cca ccb ccc cce ccf ccl ccm ccn cco ccr ccu ce- cea ceb cec cee cef cel cem cen ceo cer ceu cfa cfb cfc cfe cff cfl cfm cfn cfo cfr cfu cl- cla clb clc cle clf cll clm cln clo clr clu cma cmb cmc cme cmf cml cmm cmn cmo cmr cmu cn- cna cnb cnc cne cnf cnl cnm cnn cno cnr cnu co- coa cob coc coe cof col com con coo cor cou cra crb crc cre crf crl crm crn cro crr cru cua cub cuc cue cuf cul cum cun cuo cur cuu eaa eab eac eae eaf eal eam ean eao ear eau eba ebb ebc ebe ebf ebl ebm ebn ebo ebr ebu ec- eca ecb ecc ece ecf ecl ecm ecn eco ecr ecu eea eeb eec eee eef eel eem een eeo eer ef- efa efb efc efe eff efl efm efo efr ela elb elc ele elf ell elm eln elo elr elu em- ema emb emc eme emf eml emm emn emo emr emu en- ena enb enc ene enf enl enm enn eno enr enu eo- eoa eob eoc eoe eof eol eom eon eoo eor eou era erb erc ere erf erl erm ern ero err eru eu- eua eub euc eue euf eul eun eur faa fab fac fae faf fal fam fan fao far fau fba fbb fbc fbe fbf fbl fbm fbn fbo fbr fbu fca fcb fcc fce fcf fcl fcm fcn fco fcr fcu fea feb fec fee fef fel fem fen feo fer feu ffa ffc ffe fff ffl ffm ffn ffo ffr ffu fla flb flc fle flf fll flm fln flo flr flu fma fmb fmc fme fmf fml fmm fmn fmo fmr fmu fna fnb fnc fne fnf fnl fnm fnn fnr fnu foa fob foc foe fof fol fom fon foo for fou fra frb frc fre frf frl frm frn fro frr fru fua fub fue fuf ful fum fun fuo fur fuu la- laa lab lac lae laf lal lam lan lao lar lau lba lbb lbc lbe lbf lbl lbm lbo lbr lbu lca lcb lcc lce lcf lcl lcm lcn lco lcr lcu lea leb lec lee lef lel lem len leo ler leu lfa lfb lfc lfe lff lfl lfm lfn lfo lfr lfu lla llb llc lle llf lll llm lln llo llr llu lma lmb lmc lme lmf lml lmm lmn lmo lmr lmu lna lnb lnc lne lnl lnm lnn lno lnr lnu loa lob loc loe lof lol lom lon loo lor lou lra lrb lrc lrf lrm lrn lro lrr lru lua lub luc lue luf lul lum lun luo lur luu m-f m-o m-r maa mab mac mae maf mal mam man mao mar mau mba mbb mbc mbe mbf mbl mbm mbo mbr mbu mc- mca mcb mcc mce mcf mcl mcm mcn mco mcr mcu mea meb mec mee mef mel mem men meo mer meu mfa mfb mfc mfe mff mfl mfm mfn mfo mfr mfu mla mlb mlc mle mlf mll mlm mln mlo mlr mlu mma mmb mmc mme mmf mml mmm mmn mmo mmr mmu mna mnb mnc mne mnf mnl mnm mnn mno mnr mnu moa mob moc moe mof mol mom mon moo mor mou mra mrb mrc mre mrf mrl mrm mrn mro mrr mru mua mub muc mue muf mul mum mun mur muu naa nab nac nae naf nal nam nan nao nar nau nba nbb nbc nbe nbf nbl nbm nbn nbo nbr nbu nca ncb ncc nce ncf ncl ncm ncn nco ncr ncu ne- nea neb nec nee nef nel nem nen neo ner neu nfa nfb nfc nfe nff nfl nfn nfo nfr nfu nla nlb nlc nle nlf nll nlm nln nlo nlr nlu nma nmb nmc nme nml nmm nmn nmo nmr nmu nna nnb nnc nne nnf nnl nnm nnn nno nnu no- noa nob noc noe nof nol nom non noo nor nou nra nrb nrc nre nrf nrl nrm nrn nro nrr nru nua nub nuc nue nul num nun nuo nur nuu oaa oab oac oae oaf oal oam oan oao oar oau ob- oba obb obc obe obf obl obm obn obo