a-a a-b aaa aab aaf aas aau ab- aba abb abf abs abu af- afa afb aff afs afu as- asa asb asf ass asu au- aua aub auf aus b-u baa bab baf bas bau bba bbb bbf bbs bbu bfa bfb bff bfs bfu bsa bsb bsf bss bsu bua bub buf bus buu faa fab faf fas fau fba fbb fbf fbs fbu ffa fff ffs ffu fsa fsb fsf fss fsu fua fub fuf fus fuu saa sab saf sas sau sba sbb sbf sbs sbu sfa sfb sff sfs sfu ss- ssa ssb ssf sss ssu sua sub suf sus suu ua- uaa uab uaf uas uau uba ubb ubf ubs ubu ufa uff ufs ufu usa usb usf uss usu uua uus uuu

a-fu aaaa aaab aaaf aaas aaba aabb aafa aafb aaff aasa aasf aass aasu aaus abaa abab abaf abas abau abb- abba abbb abbs abff abs- absa absf abss absu abua abuf abus afaa afbs affa affs afsa afsb afua afus asaa asab asaf asas asau asba asbu asfa assa asss assu asub asus auaa aufs ausa ausu baaa baaf baas baba babb babs babu baff basa basf bass basu bau- bauf bbas bbau bbbb bbbs bfas bffs bsaa bsas bsfa bsff bsfs buba bubb bubs bubu buff busa buss busu buus faaa faas faba fabs fabu fafa faff fasa fass fbus ffff ffsa ffss fsas fssa fssf fubb fubs fubu fuff fufu fusa fuss fusu saab saaf saas saba sabb sabs sabu safa safb saff safu sasa sasf sass saua sauf saus sbaa sbas sbbs sbsa sbus sfas sfba sfss sfsu ssaa ssab ssas ssau sssa sssb sssf ssss suas sub- suba subb subs suf- sufa suff sufs sufu sus- susa suss susu suus uafa uasa uaua ubba uffa us-a usaa usaf usas usba usbs usfa usfs ussa ussb ussf usss ussu usua usus uuuu

-aaa- aaaas aaasa aaass aabaa aabba aabfs abaab ababa ababs ababu abasa abass abbas abfab abffs afuss asaba asafa asasa assab assaf assas asubs auass aubas aussa babas babau babbs babus baffa baffs basab bassa bassu bbuss bsaba bubas bubba buffa buffs busaa bussa bussu busua busuu faafu fabas faffs fafsa fauss fu-fu fubbs fubus fuffs fusus s-bus saaba saabs saaff saasa saasu sabas sabau sabsa sabus saffa sassa sauba sauff ssafa sssss suasa subba subbu subss suffa suffs susus usaas usafa usasf usfaa usuba uuuuu

aaaaba ababsa abassa abbasa abbass abubus abusua afassa aufbau ausbbs baabaa bassus bbbbbb bubbas bububu buffas sabbas safsaf sfafaa ssabsa ubussu usausa ususau

aaasuss abusuas as-saff babassu bau-bau bbbbbbb sssssss subbass

abbassus babassus bbbbbbbb bu-ba-bu sub-bass

abbabubba baabaabaa usausausa

aaaaaaaaaaaaaaa bbbbbbbbbbbbbbb