a-a a-c a-t aaa aac aaf aan aas aat aau ac- aca acc acf acn acs act acu af- afa afc aff afn afs aft afu an- ana anc anf ann ans ant anu as- asa asc asf asn ass ast asu at- ata atc atf atn ats att atu au- aua auc auf aun aus aut c-- caa cac caf can cas cat cau cca ccc ccf ccn ccs cct ccu cfa cfc cff cfn cfs cft cfu cn- cna cnc cnf cnn cns cnt cnu csa csc csf csn css cst csu cta ctc ctf ctn cts ctt ctu cua cuc cuf cun cus cut cuu faa fac faf fan fas fat fau fca fcc fcf fcn fcs fct fcu ffa ffc fff ffn ffs fft ffu fna fnc fnf fnn fns fnt fnu fsa fsc fsf fsn fss fst fsu fta ftc ftf ftn fts ftt ftu fua fuf fun fus fut fuu naa nac naf nan nas nat nau nca ncc ncf ncn ncs nct ncu nfa nfc nff nfn nfs nft nfu nna nnc nnf nnn nns nnt nnu nsa nsc nsf nsn nss nst nsu nta ntc ntf ntn nts ntt ntu nua nuc nun nus nut nuu saa sac saf san sas sat sau sca scc scf scn scs sct scu sfa sfc sff sfn sfs sft sfu sna snc snf snn sns snt snu ss- ssa ssc ssf ssn sss sst ssu sta stc stf stn sts stt stu sua suc suf sun sus sut suu taa tac taf tan tas tat tau tca tcc tcf tcn tcs tct tcu tfa tfc tff tfn tfs tft tfu tna tnc tnf tnn tns tnt tsa tsc tsf tsn tss tst tsu tta ttc ttf ttn tts ttt ttu tua tuc tuf tun tus tut tuu ua- uaa uac uaf uan uas uat uau uca ucc ucf ucn ucs uct ucu ufa ufc uff ufn ufs uft ufu un- una unc unf unn uns unt unu usa usc usf usn uss ust usu uta utc utf utn uts utt utu uua uuc uun uus uut uuu