a-a a-t aaa aaf aan aao aas aat aau af- afa aff afn afo afs aft afu an- ana anf ann ano ans ant anu aoa aof aon aoo aos aot aou as- asa asf asn aso ass ast asu at- ata atf atn ato ats att atu au- aua auf aun auo aus aut faa faf fan fao fas fat fau ffa fff ffn ffo ffs fft ffu fna fnf fnn fns fnt fnu foa fof fon foo fos fot fou fsa fsf fsn fso fss fst fsu fta ftf ftn fto fts ftt ftu fua fuf fun fuo fus fut fuu naa naf nan nao nas nat nau nfa nff nfn nfo nfs nft nfu nna nnf nnn nno nns nnt nnu no- noa nof non noo nos not nou nsa nsf nsn nso nss nst nsu nta ntf ntn nto nts ntt ntu nua nun nuo nus nut nuu oaa oaf oan oao oas oat oau of- ofa off ofn ofo ofs oft ofu on- ona onf onn ono ons ont onu oo- ooa oof oon ooo oos oot os- osa osf osn oso oss ost osu ot- ota otf otn oto ots ott otu ou- oua ouf oun ouo ous out saa saf san sao sas sat sau sfa sff sfn sfo sfs sft sfu sna snf snn sno sns snt snu soa sof son soo sos sot sou ss- ssa ssf ssn sso sss sst ssu sta stf stn sto sts stt stu sua suf sun suo sus sut suu taa taf tan tao tas tat tau tfa tff tfn tfo tfs tft tfu tna tnf tnn tno tns tnt to- toa tof ton too tos tot tou tsa tsf tsn tso tss tst tsu tta ttf ttn tto tts ttt ttu tua tuf tun tuo tus tut tuu ua- uaa uaf uan uao uas uat uau ufa uff ufn ufo ufs uft ufu un- una unf unn uno uns unt unu uoa uon uoo uos uot usa usf usn uso uss ust usu uta utf utn uto uts utt utu uua uun uus uut uuu