-ana aaaa aaab aaan aaar aaav aaba aabb aabt aana aaon aaoo aara aaro aart aata aatt aava abaa abab aban abar abat abb- abba abbb abbo abbr abbt aboa abob abon aboo abor abot abov abra abro abta abva ana- anaa anab anan anao anar anat anba anbb anbo anna annb anno annt ano- anoa anon anor ant- anta anto antr antt antv aoba aonb aono aont aora aorb aorn aort arab aran arar arat arba arna arno arnt aroa arob aron aroo aror arr- arra arro arrr arrt arta arto artr artv arva arvn arvo at-t ataa atab atan atar atat atna atno atob aton ator atot atra atrn atro atta attn atto attr avab avan avao avar avat avon avor avot avra avro avva avvo baaa baan baar baat baba babb babo babr bana bann bano banr bant baon bar- bara barb barn baro barr bart bata batn bato batt bava bbbb bnor bnrr bnta boab boan boar boat boba bobb bobo bona bonn bono bont boob boon boor boot bor- bora born boro borr bort bota botb botn boto bott bova bovo brab bran brao brat brav brna brno broa brob bron broo bror brot brrr btaa btan btob btor btrt bttb n-tv naaa naab naan naar naat naba nabo nan- nana nanb nann nano nant naor naot nara narn naro narr nart nata nato natt natv nava navo navr navv nbaa nbar nbbo nnnn nnot nntn nnvt noaa noat noba nobo non- nona nonn nono nont noo- noob noon nooo noor noot noov nor- nora norb norn noro norr nort norv not- nota noto nott notv nov- nova novo nrab nrna nron nrta ntto nttr nttv nvtv oara oban obba obbo obon obor obot obra obro onab onan onar onat onna onno onon onor onra ont- onto ontv ooaa ooba oona oont oooo oora oort ootb orab oran orao orar orat orav orba orbb orbo orna orno oro- oron oror orot orra orro orta orto orvr otan otar oto- oton otoo otor otov otra otro otta otto ovan ovar ovo- ovon ovoo ovot ovra raab raan raat raba rabb rabo rana rann rano rant raob rara rarb raro rata rato ratt rava rbbb rbbr rnbr rnnt rnot roab roan roar roat rob- roba robb robo robt rona rono ront roob roon roor root rora roro rort rota rotn roto rotr rott rova rovo rrat rrna rrrr rtan rtva taa- taan taar taat taba tabb tabo tana tann tano tant taoa taor tara tarb tarn taro tarr tart tata tatb tato tatr tatt tatv tava tavo tbar tbrb tbta toab toan toat toba tobo tobt tona tonb tonn tono tooa toon toor toot tora torn toro torr tort torv tota toto totr tott tova tovo traa trab tran trao trat trav trna trno troa tron troo trot trra trtr ttab ttbb tton tttt tvbn tvnb tvon tvro tvrr tvtv vaan vaar vaat vana vann vano vant vara varn varr vart vata vato vatt vava vnav vnto voar voat vona vonn vont voor voot vor- vora voro vort vota voto vran vrav vrba vrnn vron vrot vrto vvob vvvv