-er -ic a-a a-b a-c a-i a-t aaa aab aac aae aaf aai aan aar aat aau ab- aba abb abc abe abf abi abn abr abt abu ac- aca acb acc ace acf aci acn acr act acu aea aeb aec aee aef aei aen aer aet aeu af- afa afb afc afe aff afi afn afr aft afu ai- aia aib aic aie aif aii ain air ait aiu an- ana anb anc ane anf ani ann anr ant anu ar- ara arb arc are arf ari arn arr art aru at- ata atb atc ate atf ati atn atr att atu au- aua aub auc aue auf aui aun aur aut b-u baa bab bac bae baf bai ban bar bat bau bba bbb bbc bbe bbf bbi bbn bbr bbt bbu bca bcb bcc bce bcf bci bcn bcr bct bcu be- bea beb bec bee bef bei ben ber bet beu bfa bfb bfc bfe bff bfi bfn bfr bft bfu bi- bia bib bic bie bif bii bin bir bit biu bna bnb bnc bne bnf bni bnn bnr bnt bnu bra brb bre brf bri brn brr brt bru bta btb btc bte btf bti btn btr btt btu bua bub buc bue buf bui bun bur but buu c-- caa cab cac cae caf cai can car cat cau cba cbb cbc cbe cbf cbi cbn cbr cbt cbu cca ccb ccc cce ccf cci ccn ccr cct ccu ce- cea ceb cec cee cef cei cen cer cet ceu cfa cfb cfc cfe cff cfi cfn cfr cft cfu ci- cia cib cic cie cif cii cin cir cit ciu cn- cna cnb cnc cne cnf cni cnn cnr cnt cnu cra crb crc cre crf cri crn crr crt cru cta ctb ctc cte ctf cti ctn ctr ctt ctu cua cub cuc cue cuf cui cun cur cut cuu eaa eab eac eae eaf eai ean ear eat eau eba ebb ebc ebe ebf ebi ebn ebr ebt ebu ec- eca ecb ecc ece ecf eci ecn ecr ect ecu eea eeb eec eee eef een eer eet ef- efa efb efc efe eff efi efr eft eia eib eic eie eif eii ein eir eit eiu en- ena enb enc ene enf eni enn enr ent enu era erb erc ere erf eri ern err ert eru eta etb etc ete etf eti etn etr ett etu eu- eua eub euc eue euf eui eun eur eut faa fab fac fae faf fai fan far fat fau fba fbb fbc fbe fbf fbi fbn fbr fbt fbu fca fcb fcc fce fcf fci fcn fcr fct fcu fea feb fec fee fef fei fen fer fet feu ffa ffc ffe fff ffi ffn ffr fft ffu fia fib fic fie fif fii fin fir fit fiu fna fnb fnc fne fnf fni fnn fnr fnt fnu fra frb frc fre frf fri frn frr frt fru fta ftb ftc fte ftf fti ftn ftr ftt ftu fua fub fue fuf fui fun fur fut fuu i-f ia- iaa iab iac iae iaf iai ian iar iat iau iba ibb ibc ibe ibf ibi ibn ibr ibt ibu ica icb icc ice icf ici icn icr ict icu ie- iea iec iee ief iei ien ier iet ifa ifb ifc ife iff ifi ifn ifr ift ifu iia iib iic iie iif iii iin iir iit iiu in- ina inb inc ine inf ini inn inr int inu ir- ira irb irc ire irf iri irn irr irt iru ita itb itc ite itf iti itn itt itu iu- iua iub iuc iue iui iur iut n-i naa nab nac nae naf nai nan nar nat nau nba nbb nbc nbe nbf nbi nbn nbr nbt nbu nca ncb ncc nce ncf nci ncn ncr nct ncu ne- nea neb nec nee nef nei nen ner net neu nfa nfb nfc nfe nff nfi nfn nfr nft nfu nia nib nic nie nif nii nin nir nit niu nna nnb nnc nne nnf nni nnn nnt nnu nra nrb nrc nre nrf nri nrn nrr nrt nru nta ntb ntc nte ntf nti ntn ntr ntt ntu nua nub nuc nue nui nun nur nut nuu ra- raa rab rac rae raf rai ran rar rat rau rba rbb rbc rbe rbf rbi rbn rbr rbt rbu rca rcb rcc rce rcf rci rcn rcr rct rcu re- rea reb rec ree ref rei ren rer ret reu rfa rfb rfc rfe rff rfi rfn rfr rft rfu ria rib ric rie rif rii rin rir rit rna rnb rnc rni rnn rnr rnt rnu rra rrb rrc rrf rri rrn rrr rrt rru rta rtb rtc rte rtf rti rtn rtr rtt rtu rua rub ruc rue ruf rui run rur rut ruu taa tab tac tae taf tai tan tar tat tau tba tbb tbc tbe tbf tbi tbn tbr tbt tbu tca tcb tcc tce tcf tci tcn tcr tct tcu te- tea teb tec tee tef tei ten ter tet teu tfa tfb tfc tfe tff tfi tfn tfr tft tfu tia tib tic tie tif tii tin tir tit tiu tna tnb tnc tne tnf tni tnn tnr tnt tra trb trc tre trf tri trn trr trt tru tta ttb ttc tte ttf tti ttn ttr ttt ttu tua tub tuc tue tuf tui tun tur tut tuu ua- uaa uab uac uae uaf uai uan uar uat uau uba ubb ubc ube ubf ubi ubn ubr ubt ubu uca ucb ucc uce ucf uci ucn ucr uct ucu uea ueb uec uee uef uei uen uer uet ufa ufc ufe uff ufi ufn ufr uft ufu uia uib uic uie uif uii uin uir uit uiu un- una unb unc une unf uni unn unr unt unu ur- ura urb urc ure urf uri urn urr urt uru uta utb utc ute