-ana aaaa aaab aaac aaal aaan aaar aaba aabb aabc aabl aaca aacb aacc aacl aacn aaco aacr aala aalc aall aalo aana aaon aaoo aara aarc aaro abaa abab abac abal aban abar abb- abba abbb abbo abbr abca abcb abcc abcl abcn abcr abla ablo aboa abob abol abon aboo abor abra abrc abro acaa acab acac acan acar acba acbl acca accc acco acla aclc aclr acoa acol acon acor acr- acra acrc acro acrr alaa alac alal alan alao alar alb- alba albc albo alca alcc alco all- alla alll alln allo allr alna aloa aloc alol alon aloo alor alro ana- anaa anab anac anal anan anao anar anba anbb anbl anbo anca ancc anco anla anlc anln anlo anna annb anno ano- anoa anon anor anrc aoba aoca aola aonb aono aora aorb aorn arab arac aral aran arar arba arc- arca arco arla arlo arna arno aroa arob aron aroo aror arr- arra arrc arro arrr baaa baal baan baar baba babb babo babr bac- baca bacc bacn baco bala balc ball balo bana banc bann bano banr baol baon bar- bara barb barc barn baro barr bbbb bblb bbrc bcaa bcar bcbc bcca bccc bccl bcor bcra blaa blab blac blan blno blob bloc blon bloo blrc bnoc bnor bnrr boab boac boal boan boar boba bobb bobo boca boco bola boll boln bolo bona bonc bonn bono boob booc bool boon boor bor- bora born boro borr brab brac bran brao brca brcb brna brno broa brob broc brol bron broo bror brrr c-bo caaa caab caac caal caan caba cabo cac- caca cacc caco cacr cala calc call calo cana canc cann cano caol caor cara carb carc carl carn caro carr cbac cbal cbar cbbc cbca cbcc cbcl cbcn cbcr cblb cblc cbln cbna cbol cbrl cbrn ccaa ccab ccac ccar ccba ccbc ccbn ccca cccb cccc cccl ccla cclc ccna ccnb ccnc ccnr ccob ccoc ccra ccrc ccrl clab clan clar clob clon cloo clor clra clro cnaa cnac cnbc cnbl cnco cnna cnrc cnrr coal coan coba cobb cobo coca coco col- cola colb coll coln colo con- cona conc conn cono coob cool coon cor- cora corb corc corl corn coro corr crab crac cran crar crbc crca crcc crcr crna crob croc crol cron croo cror laaa laac laal laan laar laba labo labr laca lacc lacl laco lala lall lalo lan- lana lanc lann lano laon lara larb larc larn larr lbar lbcc lblr lcac lcbc lcca lccc lcor lcra lcrl llan llao llcc lllc llll lloa lloc lloo lncr loac loan loar lob- loba lobb lobo loca locc locn loco lola loll lolo lona lono lonr loob looc lool loon loor lora lorn loro lrac lral lrba lroc lron lrrc lrrr naaa naab naac naal naan naar naba nabc nabl nabo naca nacc nacl naco nala nalc nall nan- nana nanb nann nano naoc naor nara narc narn naro narr nbaa nbar nbbc nbbo nbca nbcc nbco ncaa ncac ncar ncba ncbc ncca nccc nccn nccr nclc ncln nclr ncna ncnc ncoa ncoc ncor ncra ncrc nlab nlcc nlra nlrb nnnn noaa noac noal noba nobc nobo nocl noco nola noll nolo non- nona nonn nono noo- noob nool noon nooo noor nor- nora norb norc norn noro norr nrab nrca nrlb nrna nroc nron nrrc nrrl oall oara obal oban obba obbo obla obol obon obor obra obro ocab ocac ocal ocan ocbc occa occc occn oclc ocna ocon ocra ocrl ocro ocrr olac olan olar olba olbo olca olcc olla ollo olon olor onab onal onan onar onc- onca onco onla onna onno onon onor onra ooaa ooba oocr oola oolo oona oooo oora orab orac oral oran orao orar orba orbb orbo orca orco orla orlo orna ornc orno oro- oron oror orra orro raab raan raba rabb rabl rabo rac- raca racc raco rala ralb rall ralo rana ranc rann rano raob raoc raol rara rarb raro rbbb rbbr rbcl rcac rcbc rcbo rccb rccc rcnl rcnr rcon rlab rnal rnbr rnco roab roan roar rob- roba robb robo roca rocc roco rola roll rolo rona ronc rono roob rool roon roor rora rorc roro rrna rrrr