a-a a-t aaa aaf aan aao aar aas aat aau af- afa aff afn afo afr afs aft afu an- ana anf ann ano anr ans ant anu aoa aof aon aoo aor aos aot aou ar- ara arf arn aro arr ars art aru as- asa asf asn aso asr ass ast asu at- ata atf atn ato atr ats att atu au- aua auf aun auo aur aus aut faa faf fan fao far fas fat fau ffa fff ffn ffo ffr ffs fft ffu fna fnf fnn fnr fns fnt fnu foa fof fon foo for fos fot fou fra frf frn fro frr frs frt fru fsa fsf fsn fso fsr fss fst fsu fta ftf ftn fto ftr fts ftt ftu fua fuf fun fuo fur fus fut fuu naa naf nan nao nar nas nat nau nfa nff nfn nfo nfr nfs nft nfu nna nnf nnn nno nns nnt nnu no- noa nof non noo nor nos not nou nra nrf nrn nro nrr nrs nrt nru nsa nsf nsn nso nsr nss nst nsu nta ntf ntn nto ntr nts ntt ntu nua nun nuo nur nus nut nuu oaa oaf oan oao oar oas oat oau of- ofa off ofn ofo ofr ofs oft ofu on- ona onf onn ono onr ons ont onu oo- ooa oof oon ooo oor oos oot or- ora orf orn oro orr ors ort oru os- osa osf osn oso osr oss ost osu ot- ota otf otn oto otr ots ott otu ou- oua ouf oun ouo our ous out ra- raa raf ran rao rar ras rat rau rfa rff rfn rfo rfr rfs rft rfu rna rnn rno rnr rns rnt rnu roa rof ron roo ror ros rot rou rra rrf rrn rrr rrs rrt rru rsa rsf rsn rso rsr rss rst rsu rta rtf rtn rto rtr rts rtt rtu rua ruf run ruo rur rus rut ruu saa saf san sao sar sas sat sau sfa sff sfn sfo sfr sfs sft sfu sna snf snn sno snr sns snt snu soa sof son soo sor sos sot sou sr- sra srf srn sro srr srs srt ss- ssa ssf ssn sso ssr sss sst ssu sta stf stn sto str sts stt stu sua suf sun suo sur sus sut suu taa taf tan tao tar tas tat tau tfa tff tfn tfo tfr tfs tft tfu tna tnf tnn tno tnr tns tnt to- toa tof ton too tor tos tot tou tra trf trn tro trr trs trt tru tsa tsf tsn tso tsr tss tst tsu tta ttf ttn tto ttr tts ttt ttu tua tuf tun tuo tur tus tut tuu ua- uaa uaf uan uao uar uas uat uau ufa uff ufn ufo ufr ufs uft ufu un- una unf unn uno unr uns unt unu uoa uon uoo uor uos uot ur- ura urf urn uro urr urs urt uru usa usf usn uso usr uss ust usu uta utf utn uto utr uts utt utu uua uun uur uus uut uuu