a-a aaa aaf aah aao aas aau af- afa aff afh afo afs afu aha ahf ahh aho ahs ahu aoa aof aoh aoo aos aou as- asa asf ash aso ass asu au- aua auf auh auo aus faa faf fah fao fas fau ffa fff ffh ffo ffs ffu fha fhf fhh fho fhs foa fof foh foo fos fou fsa fsf fsh fso fss fsu fua fuf fuo fus fuu haa haf hah hao has hau hfa hff hfh hfo hfs hfu hha hhf hhh hho hhs hhu hoa hof hoh hoo hos hou hsa hsf hsh hss hsu hua huf huh huo hus huu oaa oaf oah oao oas oau of- ofa off ofo ofs ofu oha ohf ohh oho ohs ohu oo- ooa oof ooh ooo oos os- osa osf osh oso oss osu ou- oua ouf ouh ouo ous saa saf sah sao sas sau sfa sff sfh sfo sfs sfu sh- sha shf shh sho shs shu soa sof soh soo sos sou ss- ssa ssf ssh sso sss ssu sua suf suh suo sus suu ua- uaa uaf uah uao uas uau ufa uff ufh ufo ufs ufu uha uhf uhh uho uhs uhu uoa uoo uos usa usf ush uso uss usu uua uus uuu