-ana aaaa aaab aaan aaar aaas aaav aaba aabb aana aaon aaoo aara aaro aars aasa aass aava abaa abab aban abar abas abb- abba abbb abbo abbr abbs aboa abob abon aboo abor abos abov abra abro abrs abs- absa abss abva ana- anaa anab anan anao anar anas anba anbb anbo anna annb anno anns ano- anoa anon anor anos ansa anso aoba aonb aono aora aorb aorn aors aoss arab aran arar aras arba arbs arna arno arns aroa arob aron aroo aror aros arr- arra arro arrr arrs ars- arsa arso arva arvn arvo asaa asab asan asao asar asas asba asbo asno asob ason asor asos asra asro asrs assa assn asso assr asss asva asvs avab avan avao avar avas avon avor avos avra avro avva avvo baaa baan baar baas baba babb babo babr babs bana bann bano banr bans baon baos bar- bara barb barn baro barr bars basa baso bass bava bbas bbbb bbbs bnas bnor bnrr bnss boab boan boar boas boba bobb bobo bobs bona bonn bono bons boob boon boor boos bor- bora born boro borr bors bosa bosn boso boss bova bovo brab bran brao bras brav brna brno brns broa brob bron broo bror bros brrr brrs brsb brsr bsaa bsas bsns bson bsos bsra naaa naab naan naar naas naba nabo nabs nan- nana nanb nann nano nans naor naos nara narn naro narr nars nas- nasa nasb naso nasr nass nasv nava navo navr navs navv nbaa nbar nbas nbbo nnnn nnos nnsa nnss noaa noba nobo nobs non- nona nonn nono nons noo- noob noon nooo noor noos noov nor- nora norb norn noro norr nors norv nos- nosa noss nov- nova novo nrab nras nrna nron nrsa nrsv nsaa nsar nsbo nsna nsnr nsos nsra nssa nssb nsso nssr nsss nvss oara oars oass oavs oban obas obba obbo obon obor obos obra obro obsn obsr obss obvs onab onan onar onas onna onno onon onor onos onra onso ooaa ooba oona oons oooo ooos oora oosa orab oran orao orar oras orav orba orbb orbo orbs orna orno orns oro- oron oror oros orra orro orrs orsa orso orvr orvs osan osar osas osba osno osnr osoo osor osos osov osro ossa ossb osso ovan ovar ovo- ovon ovoo ovra raab raan raas raba rabb rabo rabs rana rann rano rans raob raos rara rarb raro rars rasa raso rass rava rbbb rbbr rbbs rbss rnas rnbr roab roan roar roas rob- roba robb robo robs rona rono rons roob roon roor roos rora roro rosa roso ross rova rovo rovs rras rrna rrrr rsaa rsna rsnn rsno rsnr rsos rssa s-os saab saan saar saas saba sabb sabo sabr sabs sana sann sano sanr sans saon saor saos sara sarn saro sarr sars sarv sasa saso sass sava savo savs sbaa sbar sbas sbbs sbor sbsa snab snar snas snav snba snns snoa snob snoo snor snos snov snra snrs soan soar soas soba sobo sobr sobs son- sona sono sons soon soor soos sora sorb sorn soro sorr sors sosa soso soss sosv sova sovo sovs sras srna srnn srno sros srvn ssaa ssab ssan ssao ssas ssbn ssbr ssns ssra ssrs sssa sssb ssss svan svar svns svor vaan vaar vaas vabs vana vann vano vans vara varn varr vars vas- vasa vaso vass vava vavs vnav vnso voar vona vonn vons voor vor- vora voro vors vosa voso voss vran vras vrav vrba vrnn vron vrsa vsan vvob vvsb vvvv