a-wa aaaa aaaf aaas aafa aaff aaoo aaow aasa aasf aass aast aata aatf aatt aatw aawt aaww afaa afao afat affa affo affs afft affw afoa afoo afsa afst afta afts aoss aotf asaa asaf asao asas asat asfa asof asos asot asow assa asso asss asst asta asto asts at-t ataa atas atat atfs atof atos atot atst atta atto atts atwa atwo atws atwt awas awoo awow awss awst awts awwa awws faaa faas fafa faff fafo fasa faso fass fast fata fatf fato fats fatt fawf fawt ffff ffsa ffss fftf fftw foaf fofo foof foos foot fosa foso foss fost fota foto fots fott fotw fsas fsfo fssa fssf fsta ftos ftsa fttw ftwo oafo oafs oass oast oats ofas off- offa offo offs ofst ofta ooaa ooff oofs oooo ooos oosa oost oots ootw osaf osas osat osfa osoo osos osow ossa osso osta osts otas oto- otof otoo otos otow otsa otso otta otto otts otwo owow owsa owt- owtt owwa s-os saaf saas saat safa saff safo saft saos sasa sasf saso sass sast sata sato sats satt sawa sawf saws sawt sfas sfos sfss sfts sfwa soas soat soaw sofa sofo soft soof soos soot sosa soso soss sost sota soto sots sotw sowa sowf sows sowt ssaa ssao ssas ssat ssaw ssot sssa sssf ssss ssta ssts ssws stas stat staw stfw stoa stof stoo stos stot stow stsf stss swaf swas swat swoo swot swow swss swts taa- taaf taas taat tafa taff tafo taft taoa taos tasa tass tast tata tato tats tatt tawa tawo taws tawt taww tfot tfss toas toat toaw tofa toff tofo toft tooa toof toos toot tosa toso toss tost tota toto tots tott towa tows tsaa tsao tsat tsos tssa tssf tsst tsts tswa ttfa ttff ttss tttt twas twat two- twoa twof twoo twos twot twss waaa waaf waao waas waat waaw wafa waff wafs waft waoo waos waow wasa wasf waso wass wast wata wato wats watt watw wawa wawf wawo waws wawt wfaa wfas wfat wfaw wfff wfos wfot wfso wfss wfst wfta wftf wftw wfwa wfwo woaa woas woat woff woft woof woos woot woow wosa wosf woso woss wost wosw wots wott wotw wowf wowo wows wowt woww wsaa wsat wsfa wsff wsfs wsfw wsof wsoo wsos wsss wsst wssw wsta wstf wsto wsts wstt wstw wsws wswt wsww wtaw wtof wtot wtow wtsa wtsf wtso wtss wtta wttf wtto wtts wttt wttw wtwa wtwf wtwo wtws wtwt wtww wwfa wwfw wwof wwos wwot wwow wwsf wwss wwst wwta wwtf wwtw wwwa wwws wwww