-er a-a a-c a-t aaa aac aae aan aao aar aas aat aau ac- aca acc ace acn aco acr acs act acu aea aec aee aen aeo aer aes aet aeu an- ana anc ane ann ano anr ans ant anu aoa aoc aoe aon aoo aor aos aot aou ar- ara arc are arn aro arr ars art aru as- asa asc ase asn aso asr ass ast asu at- ata atc ate atn ato atr ats att atu au- aua auc aue aun auo aur aus aut c-- caa cac cae can cao car cas cat cau cca ccc cce ccn cco ccr ccs cct ccu ce- cea cec cee cen ceo cer ces cet ceu cn- cna cnc cne cnn cno cnr cns cnt cnu co- coa coc coe con coo cor cos cot cou cra crc cre crn cro crr crs crt cru csa csc cse csn cso csr css cst csu cta ctc cte ctn cto ctr cts ctt ctu cua cuc cue cun cuo cur cus cut cuu eaa eac eae ean eao ear eas eat eau ec- eca ecc ece ecn eco ecr ecs ect ecu eea eec eee een eeo eer ees eet en- ena enc ene enn eno enr ens ent enu eo- eoa eoc eoe eon eoo eor eos eot eou era erc ere ern ero err ers ert eru es- esa esc ese esn eso esr ess est esu eta etc ete etn eto etr ets ett etu eu- eua euc eue eun eur eus eut naa nac nae nan nao nar nas nat nau nca ncc nce ncn nco ncr ncs nct ncu ne- nea nec nee nen neo ner nes net neu nna nnc nne nnn nno nns nnt nnu no- noa noc noe non noo nor nos not nou nra nrc nre nrn nro nrr nrs nrt nru nsa nsc nse nsn nso nsr nss nst nsu nta ntc nte ntn nto ntr nts ntt ntu nua nuc nue nun nuo nur nus nut nuu oaa oac oae oan oao oar oas oat oau oc- oca occ ocn oco ocr ocs oct ocu oea oec oee oen oeo oer oes oet on- ona onc one onn ono onr ons ont onu oo- ooa ooc oon ooo oor oos oot or- ora orc ore orn oro orr ors ort oru os- osa osc ose osn oso osr oss ost osu ot- ota otc ote otn oto otr ots ott otu ou- oua ouc oue oun ouo our ous out ra- raa rac rae ran rao rar ras rat rau rca rcc rce rcn rco rcr rcs rct rcu re- rea rec ree ren reo rer res ret reu rna rnc rnn rno rnr rns rnt rnu roa roc roe ron roo ror ros rot rou rra rrc rrn rrr rrs rrt rru rsa rsc rse rsn rso rsr rss rst rsu rta rtc rte rtn rto rtr rts rtt rtu rua ruc rue run ruo rur rus rut ruu saa sac sae san sao sar sas sat sau sca scc sce scn sco scr scs sct scu se- sea sec see sen seo ser ses set seu sna snc sne snn sno snr sns snt snu soa soc soe son soo sor sos sot sou sr- sra src sre srn sro srr srs srt ss- ssa ssc sse ssn sso ssr sss sst ssu sta stc ste stn sto str sts stt stu sua suc sue sun suo sur sus sut suu taa tac tae tan tao tar tas tat tau tca tcc tce tcn tco tcr tcs tct tcu te- tea tec tee ten teo ter tes tet teu tna tnc tne tnn tno tnr tns tnt to- toa toc toe ton too tor tos tot tou tra trc tre trn tro trr trs trt tru tsa tsc tse tsn tso tsr tss tst tsu tta ttc tte ttn tto ttr tts ttt ttu tua tuc tue tun tuo tur tus tut tuu ua- uaa uac uae uan uao uar uas uat uau uca ucc uce ucn uco ucr ucs uct ucu uea uec uee uen uer ues uet un- una unc une unn uno unr uns unt unu uoa uoc uoe uon uoo uor uos uot ur- ura urc ure urn uro urr urs urt uru usa usc use usn uso usr uss ust usu uta utc ute utn uto utr uts utt utu uua uuc uue uun uur uus uut uuu