a-a a-c a-t aaa aac aaf aan aar aas aat aau ac- aca acc acf acn acr acs act acu af- afa afc aff afn afr afs aft afu an- ana anc anf ann anr ans ant anu ar- ara arc arf arn arr ars art aru as- asa asc asf asn asr ass ast asu at- ata atc atf atn atr ats att atu au- aua auc auf aun aur aus aut c-- caa cac caf can car cas cat cau cca ccc ccf ccn ccr ccs cct ccu cfa cfc cff cfn cfr cfs cft cfu cn- cna cnc cnf cnn cnr cns cnt cnu cra crc crf crn crr crs crt cru csa csc csf csn csr css cst csu cta ctc ctf ctn ctr cts ctt ctu cua cuc cuf cun cur cus cut cuu faa fac faf fan far fas fat fau fca fcc fcf fcn fcr fcs fct fcu ffa ffc fff ffn ffr ffs fft ffu fna fnc fnf fnn fnr fns fnt fnu fra frc frf frn frr frs frt fru fsa fsc fsf fsn fsr fss fst fsu fta ftc ftf ftn ftr fts ftt ftu fua fuf fun fur fus fut fuu naa nac naf nan nar nas nat nau nca ncc ncf ncn ncr ncs nct ncu nfa nfc nff nfn nfr nfs nft nfu nna nnc nnf nnn nns nnt nnu nra nrc nrf nrn nrr nrs nrt nru nsa nsc nsf nsn nsr nss nst nsu nta ntc ntf ntn ntr nts ntt ntu nua nuc nun nur nus nut nuu ra- raa rac raf ran rar ras rat rau rca rcc rcf rcn rcr rcs rct rcu rfa rfc rff rfn rfr rfs rft rfu rna rnc rnn rnr rns rnt rnu rra rrc rrf rrn rrr rrs rrt rru rsa rsc rsf rsn rsr rss rst rsu rta rtc rtf rtn rtr rts rtt rtu rua ruc ruf run rur rus rut ruu saa sac saf san sar sas sat sau sca scc scf scn scr scs sct scu sfa sfc sff sfn sfr sfs sft sfu sna snc snf snn snr sns snt snu sr- sra src srf srn srr srs srt ss- ssa ssc ssf ssn ssr sss sst ssu sta stc stf stn str sts stt stu sua suc suf sun sur sus sut suu taa tac taf tan tar tas tat tau tca tcc tcf tcn tcr tcs tct tcu tfa tfc tff tfn tfr tfs tft tfu tna tnc tnf tnn tnr tns tnt tra trc trf trn trr trs trt tru tsa tsc tsf tsn tsr tss tst tsu tta ttc ttf ttn ttr tts ttt ttu tua tuc tuf tun tur tus tut tuu ua- uaa uac uaf uan uar uas uat uau uca ucc ucf ucn ucr ucs uct ucu ufa ufc uff ufn ufr ufs uft ufu un- una unc unf unn unr uns unt unu ur- ura urc urf urn urr urs urt uru usa usc usf usn usr uss ust usu uta utc utf utn utr uts utt utu uua uuc uun uur uus uut uuu