a-ya a-yo aaaa aaab aaar aaav aaba aabb aabt aaby aaoo aara aaro aart aata aatt aava abaa abab abar abat abay abb- abba abbb abbo abbr abbt abby aboa abob aboo abor abot abov aboy abra abro abry abta abva abyt abyy aoba aora aorb aort arab arar arat aray arba arby aroa arob aroo aror arr- arra arro arrr arrt arry arta arto artr artv arty arva arvo arvy ary- arya at-t ataa atab atar atat atay atob ator atot atoy atra atro atry atta atto attr atty atya avab avao avar avat avay avor avot avoy avra avro avry avva avvo avvy ay-o ayao ayar ayat ayay ayoo ayot ayra ayry ayta ayto ayya baaa baar baat baba babb babo babr baby bar- bara barb baro barr bart bary bata bato batt baty bava baya bayo bayt bbay bbbb bboy bbyo boab boar boat boba bobb bobo boby boob boor boot bor- bora boro borr bort bory bota botb boto bott boty bova bovo bovy boya boyo brab brao brat brav bray broa brob broo bror brot brrr bry- brya bryo btaa btob btor btrt btry bttb byar byoa byob byrt oara oary oaty obay obba obbo obby obor obot oboy obra obro ooaa ooba ooby oooo oora oort oory ootb ooty orab orao orar orat orav oray orba orbb orbo orby oro- oror orot oroy orra orro orry orta orto orvr orya otar otay oto- otoo otor otov otoy otra otro otry otta otto otyr ovar ovo- ovoo ovot ovra raab raat raba rabb rabo raby raob rara rarb raro rary rata rato ratt raty rava raya rayr rayt rbbb rbbr roab roar roat rob- roba robb robo robt roby roob roor root rora roro rort rory rota roto rotr rott roty rova rovo roya royt rrat rrrr rtva ryat ryba ryob ryot rytt ryyt taa- taar taat taba tabb tabo taby taoa taor tara tarb taro tarr tart tary tata tatb tato tatr tatt tatv taty tava tavo tavy taya tayo tayt tayy tbar tbrb tbta to-y toab toat toay toba tobo tobt toby tooa toor toot tora toro torr tort torv tory tota toto totr tott toty tova tovo toya toyb toyo toyt traa trab trao trat trav tray troa troo trot troy trra trtr try- trya tryb tryo ttab ttbb ttoy tttt tvro tvrr tvtv tvyo tyar tybo tyr- tyra tyro tyrr tyta tyto tytt tyty vaar vaat vara varr vart vary vata vato vatt vava vaya vayr vbyv voar voat voay voor voot vor- vora voro vort vory vota voto vrav vray vrba vrot vrto vryt vvob vvvv vyrt yaar yaba yabo yara yarb yaro yarr yart yarv yary yata yava yaya yayo ybor ybry yoar yoav yoba yobo yoot yoro yort yory yota yott yova yoyo ytay yvor yvto yyyy