a-a a-b a-i aaa aab aad aaf aai aas aau ab- aba abb abd abf abi abs abu ad- ada adb add adf adi ads adu af- afa afb afd aff afi afs afu ai- aia aib aid aif aii ais aiu as- asa asb asd asf asi ass asu au- aua aub aud auf aui aus b-u baa bab bad baf bai bas bau bba bbb bbd bbf bbi bbs bbu bda bdb bdd bdf bdi bds bdu bfa bfb bfd bff bfi bfs bfu bi- bia bib bid bif bii bis biu bsa bsb bsd bsf bsi bss bsu bua bub bud buf bui bus buu daa dab dad daf dai das dau dba dbb dbd dbf dbi dbs dbu dda ddb ddd ddf ddi dds ddu dfa dfb dfd dff dfi dfs dfu di- dia dib did dif dii dis diu dsa dsb dsd dsf dsi dss dsu dua dub dud duf dui dus faa fab fad faf fai fas fau fba fbb fbd fbf fbi fbs fbu fda fdb fdd fdf fdi fds fdu ffa ffd fff ffi ffs ffu fia fib fid fif fii fis fiu fsa fsb fsd fsf fsi fss fsu fua fub fud fuf fui fus fuu i-d i-f ia- iaa iab iad iaf iai ias iau iba ibb ibd ibf ibi ibs ibu ida idb idd idf idi ids idu ifa ifb ifd iff ifi ifs ifu iia iib iid iif iii iis iiu is- isa isb isd isf isi iss isu iu- iua iub iud iui ius saa sab sad saf sai sas sau sba sbb sbd sbf sbi sbs sbu sda sdb sdd sdf sdi sds sdu sfa sfb sfd sff sfi sfs sfu sia sib sid sif sii sis siu ss- ssa ssb ssd ssf ssi sss ssu sua sub sud suf sui sus suu ua- uaa uab uad uaf uai uas uau uba ubb ubf ubi ubs ubu uda udb udd udf udi uds udu ufa ufd uff ufi ufs ufu uia uib uid uif uii uis uiu usa usb usd usf usi uss usu uua uus uuu

a-fu a-ii aaaa aaab aaad aaaf aaai aaas aaba aabb aabd aabi aada aadi aads aadu aafa aafb aafd aaff aafi aaib aaii aais aasa aasd aasf aasi aass aasu aaus abaa abab abad abaf abai abas abau abb- abba abbb abbi abbs abda abdi abdu abff abia abib abid abis abiu abs- absa absd absf absi abss absu abua abud abuf abus adaa adab adad adai adas adba adbi adda addd addi adds addu adfa adfs adia adib adif adis adsa adsi adss adua adub afaa afad afbs afdb affa affi affs afia afib afid afif afis afsa afsb afua afud afus aiai aias aiba aida aidb aidi aids aidu aifd aiff aifs aiia aiib aiid aisa aisb aisd aisi aiud aiui asaa asab asad asaf asai asas asau asba asbu asda asdf asds asfa asfi asia asif asii asis assa assd assi asss assu asub asud asui asus auaa audi aufi aufs auis ausa ausd ausu ba-i baaa baad baaf baas baba babb babi babs babu bada badb badd badi bads badu baff baia baib baid bais basa basf basi bass basu bau- baud bauf bbad bbas bbau bbbb bbbs bbdd bdii bdsd bduf bfas bffs bfsi biad biaf bias biba bibb bibi bibs bida bidi bids bidu bifa biff bifi biis bis- bisa bisd biss bisu bsaa bsas bsbd bsfa bsff bsfs bssd buad buba bubb bubi bubs bubu buda budb budd budi buds budu buff buid buif buis buiu busa busi buss busu buus daab daad daas daau daba dabb dabs dabu dada dadi dads dadu dafa daff dafi dafs daia daid dais dasa dasb dasd dasi dass daub daud daus dbas dbfs dbsa dbss dbus dddd ddss ddub dfaf dfas dfds dffa dia- diab diad diaf dias diba dibb dibs dida didi dids didu dif- difa diff difs diii diis dis- disa disd disi diss dius dsba dsda dsfa dsif dssa dssi duaa duab duad duas dub- duba dubb dubs dubu duda dudd duds dudu duff dufu duid duif duis dusa dusi faaa faad faas faba fabd fabi fabs fabu fada fadd fadi fads fafa faff fafi faid fais fasa fasd fasi fass faud fbis fbsd fbus ffff ffii ffsa ffss fiaa fiad fiaf fias fiba fibs fida fidf fids fifa fiff fifi fiii fisa fisd fisi fiss fisu fiua fsai fsas fsfi fsia fssa fssf fuad fubb fubs fubu fuda fudd fudi fuff fufu fuid fusa fusd fusi fuss fusu iaaa iaai iaas iaba iadb iaff iaia iais iasa iasi ibad ibas ibfi ibia ibid ibis ibsa ibsf ibss ibus idad idas idda idfa idia idid idis idsa idsf idss idub idus ifaa ifas ifbb ifda ifid ifis ifsa ifsb iias iida iifa iiii iiis iisd iisi iisu is-a isad isaf isai isas isba isbd isda isdb isds isfa isia isis issa issf issi isss issu isua isus iuds iuiu iusd iuss s-ib s-ii saab saad saaf saas saba sabb sabi sabs sabu sada sadb sadd sadi sads sadu safa safb saff safi safu saia said saif sais sasa sasd sasf sasi sass saua saud sauf saus sbaa sbai sbas sbbs sbds sbia sbsa sbsd sbsi sbus sdau sdba sdds sdib sdif sdsf sdss sdsu sfas sfba sfia sfss sfsu siaa siab siaf siai sias siau siba sibi sibs sibu sida sidd sidi sids sifa siff sifu sisa sisd sisi siss sisu siui sius ssaa ssab ssas ssau ssdd ssdf ssid ssis sssa sssb sssf sssi ssss suas sub- suba subb subd subi subs suda sudd sudi suds suf- sufa suff sufi sufs sufu suid suis sus- susa susd susi suss susu suus uafa uasa uasd uaua ubba ubbi ubid ubii ubis ubud udaa udad udas udau uddi udds udid udsd uffa uisd us-a usaa usad usaf usas usba usbs usda usdf usds usfa usfi usfs usia usif usis ussa ussb ussf usss ussu usua usui usus uusi uuuu

-aaa- -abad a-fib a-iii