-ana aaaa aaab aaac aaan aaap aaar aaba aabb aabc aabp aaca aacb aacc aacn aaco aacp aacr aana aanp aaon aaoo aapa aapc aapo aara aarc aaro aarp abaa abab abac aban abap abar abb- abba abbb abbo abbr abca abcb abcc abcn abcp abcr aboa abob abon aboo abor abpa abpc abpn abpp abpr abra abrc abro acaa acab acac acan acap acar acba acca accc acco accp acoa acon acop acor acpa acpr acr- acra acrc acro acrr ana- anaa anab anac anan anao anap anar anba anbb anbo anca ancc anco anna annb anno ano- anoa anon anor anp- anpa anpp anpr anrc aoba aoca aonb aono aopo aora aorb aorn apac apan apao apap apar apba apbr apca apcb apcc apcn apco apcr apna apno apo- apoc apon apoo apop apor appa appc appr apra aprc aprn apro arab arac aran arap arar arba arc- arca arco arna arno aroa arob aron aroo aror arpa arr- arra arrc arro arrr baaa baan baar baba babb babo babr bac- baca bacc bacn baco bana banc bann bano banp banr baon bapa bapc bapp bar- bara barb barc barn baro barr bbbb bbpr bbrc bcaa bcap bcar bcbc bcbp bcca bccc bcor bcpp bcra bnoc bnor bnpp bnrr boab boac boan boar boba bobb bobo boca boco bona bonc bonn bono boob booc boon boop boor bopa bopp bor- bora born boro borr bpcp bprc brab brac bran brao brca brcb brna brno broa brob broc bron broo bror brrr c-bo caaa caab caac caan caap caba cabo cac- caca cacc caco cacr cana canc cann cano canp caor capa capb capc capn capo capp cara carb carc carn caro carp carr cbac cbar cbbc cbca cbcc cbcn cbcp cbcr cbna cbpc cbpp cbrn ccaa ccab ccac ccap ccar ccba ccbc ccbn ccca cccb cccc cccp ccna ccnb ccnc ccnp ccnr ccob ccoc ccpa ccpn ccpp ccpr ccra ccrc ccrp cnaa cnac cnap cnbc cnbp cnco cncp cnna cnpa cnrc cnrr coan coba cobb cobo coca coco cocp con- cona conc conn cono coob coon coop copa copo copp copr cor- cora corb corc corn coro corp corr cpaa cpac cpan cpap cpbc cpca cpnb cppa crab crac cran crap crar crbc crca crcc crcr crna crob croc cron croo crop cror crpc naaa naab naac naan naar naba nabc nabo naca nacc naco nacp nan- nana nanb nann nano nanp naoc naor napa napb napo napp nara narc narn naro narp narr nbaa nbap nbar nbbc nbbo nbca nbcc nbco nbpa nbpp ncaa ncac ncap ncar ncba ncbc ncca nccc nccn nccp nccr ncna ncnc ncoa ncoc ncor ncpa ncpc ncra ncrc ncrp nnnn nnpr noaa noac noap noba nobc nobo noco non- nona nonn nono noo- noob noon nooo noop noor nor- nora norb norc norn noro norr npac npap npca npcc nppa nppc npra nrab nrap nrca nrna nroc nron nrpc nrpn nrrc oara oban obba obbo obon obor obra obro ocab ocac ocan ocap ocbc occa occc occn ocna ocon ocpa ocpp ocra ocro ocrr onab onan onar onc- onca onco onna onno onon onor onra ooaa ooba oocr oona oooo oora opan opap opar opca opo- opon opor oppa oppo opra orab orac oran orao orar orba orbb orbo orca orco orna ornc orno oro- oron oror orpc orra orro paan paap paar paba paca paco pan- pana panc pann pano paoc paon papa papb papp papr par- para parc parn paro parp parr pbac pban pbar pbcc pboc pbpa pcaa pcap pcba pcbc pcca pccc pcoa pcpb pcpn pcpp pcra pcrc pnac pnar pnca pnon pnpo pnpp pnra pnro poan poar poba pobo poca poco pona ponc pono ponp poon poop poor pop- popa popc popo popp pora porb porc porn poro porr ppac ppan ppap ppar ppcc ppoa pppa pppn pppo pppp pprc pran prao prar prbc prca prcc prcp prna prnp pro- proa prob proc pron proo prop raab raan raba rabb rabo rac- raca racc raco rana ranc rann rano raob raoc raop rapa rapc rapp rara rarb raro rbbb rbbr rcac rcbc rcbo rccb rccc rcnr rcon rcpo rnbr rnco rncp roab roan roap roar rob- roba robb robo roca rocc roco rona ronc rono roob roon roop roor ropa ropo rora rorc roro rpca rpob rpon rppn rrna rrrr