a-a a-b aaa aab aaf aao aar aas ab- aba abb abf abo abr abs af- afa afb aff afo afr afs aoa aob aof aoo aor aos ar- ara arb arf aro arr ars as- asa asb asf aso asr ass baa bab baf bao bar bas bba bbb bbf bbo bbr bbs bfa bfb bff bfo bfr bfs boa bob bof boo bor bos bra brb brf bro brr brs bsa bsb bsf bso bsr bss faa fab faf fao far fas fba fbb fbf fbo fbr fbs ffa fff ffo ffr ffs foa fob fof foo for fos fra frb frf fro frr frs fsa fsb fsf fso fsr fss oaa oab oaf oao oar oas ob- oba obb obf obo obr obs of- ofa ofb off ofo ofr ofs oo- ooa oob oof ooo oor oos or- ora orb orf oro orr ors os- osa osb osf oso osr oss ra- raa rab raf rao rar ras rba rbb rbf rbo rbr rbs rfa rfb rff rfo rfr rfs roa rob rof roo ror ros rra rrb rrf rrr rrs rsa rsb rsf rso rsr rss saa sab saf sao sar sas sba sbb sbf sbo sbr sbs sfa sfb sff sfo sfr sfs soa sob sof soo sor sos sr- sra srb srf sro srr srs ss- ssa ssb ssf sso ssr sss

aaaa aaab aaaf aaar aaas aaba aabb aafa aafb aaff aaoo aara aaro aars aasa aasf aass abaa abab abaf abar abas abb- abba abbb abbo abbr abbs abff aboa abob abof aboo abor abos abra abro abrs abs- absa absf abss afaa afao afar afbs affa affo affs afoa afoo afor afr- afra afro afrs afsa afsb aoba aora aorb aors aoss arab araf arar aras arba arbs arfa arfb arff arfs aroa arob aroo aror aros arr- arra arro arrr arrs ars- arsa arso asaa asab asaf asao asar asas asba asbo asfa asob asof asor asos asra asro asrs assa asso assr asss baaa baaf baar baas baba babb babo babr babs baff bafo baos bar- bara barb barf baro barr bars basa basf baso bass bbas bbbb bbbs bfas bffs bfsr boab boar boas boba bobb bobo bobs bofa boff bofs boob boof boor boos bor- bora borf boro borr bors bosa boso boss brab braf brao bras broa brob broo bror bros brrr brrs brsb brsr bsaa bsas bsfa bsff bsfs bsos bsra faaa faas faba fabo fabs fafa faff fafo fara farb faro farr fars fasa faso fass fbar fbrs ffar ffff ffrr ffsa ffss foaf foar foba fobs fofo foof foos for- fora forb foro forr fors fosa fosb foso foss frab fras frob fros frsb frso fsas fsfo fsra fssa fssf oafo oafs oara oars oass obas obba obbo obor obos obra obro obsr obss ofas off- offa offo offr offs ofor ofra ooaa ooba ooff oofs oooo ooos oora oosa orab orao orar oras orba orbb orbo orbs orff orfs oro- orof oror oros orra orro orrs orsa orso osaf osar osas osba osfa osoo osor osos osro ossa ossb osso raab raaf raas raba rabb rabo rabs rafa raff raob raos rara rarb rarf raro rars rasa raso rass rbaf rbbb rbbr rbbs rbss roab roaf roar roas rob- roba robb robo robs roff rofo roob roof roor roos rora roro rosa roso ross rras rrrr rsaa rsaf rsos rssa s-os saab saaf saar saas saba sabb sabo sabr sabs safa safb saff safo safr saor saos sara sarf saro sarr sars sasa sasf saso sass sbaa sbar sbas sbbs sbor sbsa sfar sfas sfba sfor sfos sfra sfro sfss soar soas soba sobo sobr sobs sofa sofo soof soor soos sora sorb soro sorr sors sosa soso soss sraf sras sros ssaa ssab ssao ssas ssbr ssra ssrs sssa sssb sssf ssss

-aaa- aaaas aaasa aaass aabaa aabba aabfs aabra aasra abaab ababa ababs abara abasa abass abbar abbas abbos abbrs abfab abffs aboab abobo abora aboso abrar abras absar afara afars affor afoss afro- afrob afros afsar aoos ar-ab arab- araba arabo arabs arafo arara arars arass arbab arbar arbas arbor arbos aroab aroar aroba aroof aroor aroos arora arosa arras arros arsos asaba asafa asafo asara asaro asasa asbos asbro asfar asfor asoar asofa asoof asors asosa asrar asror assab assaf assas assoa assos baars babar babas babbs baboo babos babra baffa baffs bafra baoro baraa barab barao barar baras barba barbs barff barfs baro- baroa barof baroo baror baros barra barro barrs barsa barss basab basar baso- basor basra bassa basso bo-bo boaro boars bobar bobos bobr boffa boffo boffs booba boobs boofs boora boors boosa boras borba borbo boro- boroa boroo boros borra borro borsa bosas bosor bosra bossa bosso braas braff brasa brass brobo brobs broos brora bross brrar brrrr bsaba fabas fabbo faboo fabor fabra fabro faffs fafsa faora farab farao faras farbo farbs farfa farob faroo faros farro farrs farsa farsb farso fasor fobar fofao fofos foosa for-a foras forbs foros forra forro forsa forso forss fossa fraba frabs frass frobs o-r-b oaror obaba obara obora oboro obrab obras ofafa offas offof ofora ooooo oraas oraba orara orfar orfor orobo oroso osars ososo ossos ra-ra raaba raaff raaor raasa raaso rabab rabas rabba rabor rabos rafar raffa raffs raraf rarfs rasar rasas rasfa rasor rasos rasra rassa rasso rffsa ro-ro roars robab robar robas robbo robbs robo- robor roffa rofor rooba roofs roosa rorra rosar rosas rossa rosso rosss rsssf s-o-r sa-ra saaba saabo saabs saaff saara saarf saasa sabar sabas saboo sabor sabra sabsa safar saffa saffo safor safra saora saraa sarab saraf sarao saras saros sarra sarro sarsa sasor sassa sasso sfaar so-so soara soars sobao sobor sobra sofar sofas sofra sooar soras sorbo sorbs soror soros sorra sorso sosas soss- srb-a sroof srosa ssafa sssrb sssss

aaaaba aabroo aafoss aaraas ababsa abaroa abasar abassa abbasa abbass aboaso abobra abrafo absorb afassa affors araafa arabas arabo- ararao araras araros arbors arbra arfara