-er -ic a-a a-b a-c a-i aaa aab aac aae aaf aai aan aar aau ab- aba abb abc abe abf abi abn abr abu ac- aca acb acc ace acf aci acn acr acu aea aeb aec aee aef aei aen aer aeu af- afa afb afc afe aff afi afn afr afu ai- aia aib aic aie aif aii ain air aiu an- ana anb anc ane anf ani ann anr anu ar- ara arb arc are arf ari arn arr aru au- aua aub auc aue auf aui aun aur b-u baa bab bac bae baf bai ban bar bau bba bbb bbc bbe bbf bbi bbn bbr bbu bca bcb bcc bce bcf bci bcn bcr bcu be- bea beb bec bee bef bei ben ber beu bfa bfb bfc bfe bff bfi bfn bfr bfu bi- bia bib bic bie bif bii bin bir biu bna bnb bnc bne bnf bni bnn bnr bnu bra brb bre brf bri brn brr bru bua bub buc bue buf bui bun bur buu c-- caa cab cac cae caf cai can car cau cba cbb cbc cbe cbf cbi cbn cbr cbu cca ccb ccc cce ccf cci ccn ccr ccu ce- cea ceb cec cee cef cei cen cer ceu cfa cfb cfc cfe cff cfi cfn cfr cfu ci- cia cib cic cie cif cii cin cir ciu cn- cna cnb cnc cne cnf cni cnn cnr cnu cra crb crc cre crf cri crn crr cru cua cub cuc cue cuf cui cun cur cuu eaa eab eac eae eaf eai ean ear eau eba ebb ebc ebe ebf ebi ebn ebr ebu ec- eca ecb ecc ece ecf eci ecn ecr ecu eea eeb eec eee eef een eer ef- efa efb efc efe eff efi efr eia eib eic eie eif eii ein eir eiu en- ena enb enc ene enf eni enn enr enu era erb erc ere erf eri ern err eru eu- eua eub euc eue euf eui eun eur faa fab fac fae faf fai fan far fau fba fbb fbc fbe fbf fbi fbn fbr fbu fca fcb fcc fce fcf fci fcn fcr fcu fea feb fec fee fef fei fen fer feu ffa ffc ffe fff ffi ffn ffr ffu fia fib fic fie fif fii fin fir fiu fna fnb fnc fne fnf fni fnn fnr fnu fra frb frc fre frf fri frn frr fru fua fub fue fuf fui fun fur fuu i-f ia- iaa iab iac iae iaf iai ian iar iau iba ibb ibc ibe ibf ibi ibn ibr ibu ica icb icc ice icf ici icn icr icu ie- iea iec iee ief iei ien ier ifa ifb ifc ife iff ifi ifn ifr ifu iia iib iic iie iif iii iin iir iiu in- ina inb inc ine inf ini inn inr inu ir- ira irb irc ire irf iri irn irr iru iu- iua iub iuc iue iui iur n-i naa nab nac nae naf nai nan nar nau nba nbb nbc nbe nbf nbi nbn nbr nbu nca ncb ncc nce ncf nci ncn ncr ncu ne- nea neb nec nee nef nei nen ner neu nfa nfb nfc nfe nff nfi nfn nfr nfu nia nib nic nie nif nii nin nir niu nna nnb nnc nne nnf nni nnn nnu nra nrb nrc nre nrf nri nrn nrr nru nua nub nuc nue nui nun nur nuu ra- raa rab rac rae raf rai ran rar rau rba rbb rbc rbe rbf rbi rbn rbr rbu rca rcb rcc rce rcf rci rcn rcr rcu re- rea reb rec ree ref rei ren rer reu rfa rfb rfc rfe rff rfi rfn rfr rfu ria rib ric rie rif rii rin rir rna rnb rnc rni rnn rnr rnu rra rrb rrc rrf rri rrn rrr rru rua rub ruc rue ruf rui run rur ruu ua- uaa uab uac uae uaf uai uan uar uau uba ubb ubc ube ubf ubi ubn ubr ubu uca ucb ucc uce ucf uci ucn ucr ucu uea ueb uec uee uef uei uen uer ufa ufc ufe uff ufi ufn ufr ufu uia uib uic uie uif uii uin uir uiu un- una unb unc une unf uni unn unr unu ur- ura urb urc ure urf uri urn urr uru uua uuc uue uun uur uuu