a-a a-c a-t aaa aac aaf aan aao aar aas aat aau ac- aca acc acf acn aco acr acs act acu af- afa afc aff afn afo afr afs aft afu an- ana anc anf ann ano anr ans ant anu aoa aoc aof aon aoo aor aos aot aou ar- ara arc arf arn aro arr ars art aru as- asa asc asf asn aso asr ass ast asu at- ata atc atf atn ato atr ats att atu au- aua auc auf aun auo aur aus aut c-- caa cac caf can cao car cas cat cau cca ccc ccf ccn cco ccr ccs cct ccu cfa cfc cff cfn cfo cfr cfs cft cfu cn- cna cnc cnf cnn cno cnr cns cnt cnu co- coa coc cof con coo cor cos cot cou cra crc crf crn cro crr crs crt cru csa csc csf csn cso csr css cst csu cta ctc ctf ctn cto ctr cts ctt ctu cua cuc cuf cun cuo cur cus cut cuu faa fac faf fan fao far fas fat fau fca fcc fcf fcn fco fcr fcs fct fcu ffa ffc fff ffn ffo ffr ffs fft ffu fna fnc fnf fnn fnr fns fnt fnu foa foc fof fon foo for fos fot fou fra frc frf frn fro frr frs frt fru fsa fsc fsf fsn fso fsr fss fst fsu fta ftc ftf ftn fto ftr fts ftt ftu fua fuf fun fuo fur fus fut fuu naa nac naf nan nao nar nas nat nau nca ncc ncf ncn nco ncr ncs nct ncu nfa nfc nff nfn nfo nfr nfs nft nfu nna nnc nnf nnn nno nns nnt nnu no- noa noc nof non noo nor nos not nou nra nrc nrf nrn nro nrr nrs nrt nru nsa nsc nsf nsn nso nsr nss nst nsu nta ntc ntf ntn nto ntr nts ntt ntu nua nuc nun nuo nur nus nut nuu oaa oac oaf oan oao oar oas oat oau oc- oca occ ocf ocn oco ocr ocs oct ocu of- ofa ofc off ofn ofo ofr ofs oft ofu on- ona onc onf onn ono onr ons ont onu oo- ooa ooc oof oon ooo oor oos oot or- ora orc orf orn oro orr ors ort oru os- osa osc osf osn oso osr oss ost osu ot- ota otc otf otn oto otr ots ott otu ou- oua ouc ouf oun ouo our ous out ra- raa rac raf ran rao rar ras rat rau rca rcc rcf rcn rco rcr rcs rct rcu rfa rfc rff rfn rfo rfr rfs rft rfu rna rnc rnn rno rnr rns rnt rnu roa roc rof ron roo ror ros rot rou rra rrc rrf rrn rrr rrs rrt rru rsa rsc rsf rsn rso rsr rss rst rsu rta rtc rtf rtn rto rtr rts rtt rtu rua ruc ruf run ruo rur rus rut ruu saa sac saf san sao sar sas sat sau sca scc scf scn sco scr scs sct scu sfa sfc sff sfn sfo sfr sfs sft sfu sna snc snf snn sno snr sns snt snu soa soc sof son soo sor sos sot sou sr- sra src srf srn sro srr srs srt ss- ssa ssc ssf ssn sso ssr sss sst ssu sta stc stf stn sto str sts stt stu sua suc suf sun suo sur sus sut suu taa tac taf tan tao tar tas tat tau tca tcc tcf tcn tco tcr tcs tct tcu tfa tfc tff tfn tfo tfr tfs tft tfu tna tnc tnf tnn tno tnr tns tnt to- toa toc tof ton too tor tos tot tou tra trc trf trn tro trr trs trt tru tsa tsc tsf tsn tso tsr tss tst tsu tta ttc ttf ttn tto ttr tts ttt ttu tua tuc tuf tun tuo tur tus tut tuu ua- uaa uac uaf uan uao uar uas uat uau uca ucc ucf ucn uco ucr ucs uct ucu ufa ufc uff ufn ufo ufr ufs uft ufu un- una unc unf unn uno unr uns unt unu uoa uoc uon uoo uor uos uot ur- ura urc urf urn uro urr urs urt uru usa usc usf usn uso usr uss ust usu uta utc utf utn uto utr uts utt utu uua uuc uun uur uus uut uuu