-ana aaaa aaab aaan aaar aaba aabb aabt aana aaon aaoo aara aaro aart aata aatt abaa abab aban abar abat abb- abba abbb abbo abbr abbt aboa abob abon aboo abor abot abra abro abta ana- anaa anab anan anao anar anat anba anbb anbo anna annb anno annt ano- anoa anon anor ant- anta anto antr antt 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 at-t ataa atab atan atar atat atna atno atob aton ator atot atra atrn atro atta attn atto attr 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 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 brab bran brao brat brna brno broa brob bron broo bror brot brrr btaa btan btob btor btrt bttb naaa naab naan naar naat naba nabo nan- nana nanb nann nano nant naor naot nara narn naro narr nart nata nato natt nbaa nbar nbbo nnnn nnot nntn noaa noat noba nobo non- nona nonn nono nont noo- noob noon nooo noor noot nor- nora norb norn noro norr nort not- nota noto nott nrab nrna nron nrta ntto nttr oara oban obba obbo obon obor obot obra obro onab onan onar onat onna onno onon onor onra ont- onto ooaa ooba oona oont oooo oora oort ootb orab oran orao orar orat orba orbb orbo orna orno oro- oron oror orot orra orro orta orto otan otar oto- oton otoo otor otra otro otta otto raab raan raat raba rabb rabo rana rann rano rant raob rara rarb raro rata rato ratt 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 rrat rrna rrrr rtan taa- taan taar taat taba tabb tabo tana tann tano tant taoa taor tara tarb tarn taro tarr tart tata tatb tato tatr tatt tbar tbrb tbta toab toan toat toba tobo tobt tona tonb tonn tono tooa toon toor toot tora torn toro torr tort tota toto totr tott traa trab tran trao trat trna trno troa tron troo trot trra trtr ttab ttbb tton tttt