aaaa aaaf aaar aaas aafa aaff aaoo aara aaro aars aart aasa aasf aass aast aata aatf aatt afaa afao afar afat affa affo affs afft afoa afoo afor afox afr- afra afro afrs afsa afst afta afts aora aors aort aoss aotf araf arar aras arat arax arfa arff arfs arft aroa aroo aror aros arr- arra arro arrr arrs arrt ars- arsa arso arst arta arto artr arts artx asaa asaf asao asar asas asat asfa asof asor asos asot asra asro asrs assa asso assr asss asst asta asto astr asts at-t at-x ataa atar atas atat atax atfs atof ator atos atot atra atro atrx atst atta atto attr atts axaf axar axat axfr axfs axo- axoa axof axos axto axxo faaa faas fafa faff fafo fara faro farr fars fart fasa faso fass fast fata fatf fato fats fatt ffar ffff ffrr ffsa ffss fftf foaf foar fofo foof foos foot for- fora foro forr fors fort fosa foso foss fost fota foto fots fott foxx fras frat frax fros frot frso frst frta fsas fsfo fsra fssa fssf fsta ftos ftrs ftsa ftsr oafo oafs oara oars oass oast oats ofas off- offa offo offr offs ofor ofra ofst ofta ooaa ooff oofs oooo ooos oora oort oosa oost oots orao orar oras orat orff orfs oro- orof oror oros orot orra orro orrs orsa orso orta orto orts osaf osar osas osat osfa osoo osor osos osro ossa osso osta ostr osts otar otas oto- otof otoo otor otos otra otro otrs otsa otso otta otto otts oxa- oxo- oxof oxos oxox oxxo raaf raas raat rafa raff raft raos rara rarf raro rars rasa raso rass rast rata ratf rato rats ratt raxa roaf roar roas roat roff rofo roof roor roos root roox rora roro rort rosa roso ross rost rota roto rotr rots rott roxa roxo rras rrat rrrr rsaa rsaf rsos rssa rsts rtas rtss rtts s-os sa-x saaf saar saas saat safa saff safo safr saft saor saos sara sarf saro sarr sars sart sasa sasf saso sass sast sata sato satr sats satt saxa saxo saxt sfar sfas sfax sfor sfos sfra sfro sfss sfts soar soas soat sofa sofo soft soof soor soos soot sora soro sorr sors sort sosa soso soss sost sota soto sots soxs sraf sras sros srta srtr ssaa ssao ssas ssat ssot ssra ssrs sssa sssf ssss ssta ssts star stas stat stax stoa stof stoo stor stos stot stox stra stro strs stsf stss sttr taa- taaf taar taas taat tafa taff tafo taft taoa taor taos tara tarf taro tarr tars tart tasa tasr tass tast tata tato tatr tats tatt tax- taxa taxf taxo taxt tfot tfox tfrs tfss toas toat tofa toff tofo toft tooa toof toor toos toot tora torf toro torr tors tort torx tosa toso toss tost tosx tota toto totr tots tott tox- toxa toxo toxs toxt traa traf trao tras trat trax trfr troa troo tros trot trox trra trst trtr tsaa tsao tsar tsat tsos tssa tssf tssr tsst tsts ttfa ttff ttss tttt txaa txtr xaar xaos xara xats xoro xors xosa xoxo xtar xtra xtro xtsr xxxo xxxx