-ana aaaa aaab aaac aaal aaan aaar aaas aaba aabb aabc aabl aabt aaca aacb aacc aacl aacn aacr aacs aact aala aalc aall aals aana aara aarc aars aart aasa aasc aass aast aata aatc aatt abaa abab abac abal aban abar abas abat abb- abba abbb abbr abbs abbt abca abcb abcc abcl abcn abcr abcs abct abla abls abra abrc abrs abs- absa absl abss abta abts ac-t acaa acab acac acan acar acas acat acba acbl acca accc accs acct acla aclc aclr acls acr- acra acrc acrr acrs acsa acsc acsl acss acst acta actc actl acts actt alaa alac alal alan alar alas alat alb- alba albc albs alca alcc alcs all- alla alll alln allr alls alna alsa alsc alsn alst alta altn alts ana- anaa anab anac anal anan anar anas anat anba anbb anbl anca ancc anct anla anlc anln anna annb anns annt anrc ansa ant- anta antl antr ants antt arab arac aral aran arar aras arat arba arbs arc- arca arcs arct arla arna arns arnt arr- arra arrc arrr arrs arrt ars- arsa arsc arst arta artc artr arts asaa asab asac asal asan asar asas asat asba asc- asca ascb ascc ascl ascr asct asla aslr asnc asnl asra asrc asrs assa assc assl assn assr asss asst asta astb astc astl astr asts at-l at-t ataa atab atac atal atan atar atas atat atbs atca atcc atcl atcr atcs atla atls atna atns atra atrc atrn atsb atsc atst atta attn attr atts baaa baal baan baar baas baat baba babb babr babs bac- baca bacc bacn bacs bact bala balc ball bals balt bana banc bann banr bans bant bar- bara barb barc barn barr bars bart basa basc bass bast bata batc batn bats batt bbas bbbb bbbs bblb bbls bbrc bcaa bcar bcas bcat bcbc bcbs bcca bccc bccl bccs bcra bcrs bcsa bcsc bcsl bcsn bcss bctc bcts blaa blab blac blan blas blat blbt blls blrc blss blst blts bnas bnrr bnss bnta brab brac bran bras brat brca brcb brls brna brns brrr brrs brsb brsr brst brtc bsaa bsac bsas bsat bscs bslc bsns bsra bssc bsts btaa btan btcc btcl btcs btla btrc btrt btss bttb caaa caab caac caal caan caas caat caba cabs cac- caca cacc cacr cala calc call cals calt cana canc cann cans cant cara carb carc carl carn carr cars cart casa casb casc casl casr cass cast cat- cata catb catc cats catt cbac cbal cbar cbat cbbc cbbs cbca cbcc cbcl cbcn cbcr cbcs cbct cblb cblc cbln cbna cbrl cbrn cbrt cbsa cbsc cbsn cbta cbtc cbtl ccaa ccab ccac ccar ccas ccat ccba ccbc ccbn ccca cccb cccc cccl cccs ccla cclc ccls ccna ccnb ccnc ccnr ccns ccra ccrc ccrl ccrs ccrt ccsa ccsl ccsn ccss ccst cctb cctc cctl cctt clab clan clar clas clat clra clrs clsa clsc cltb cltc clts cnaa cnac cnas cnbc cnbl cnna cnrc cnrr cnrt cnsa cnsl cnss cnta cntc cntr crab crac cran crar cras crat crbc crca crcc crcr crls crna crns crrt crsa crss crst crtc crtl crts csaa csab csac csar csas csat cscb cscc cscl cscr cscs csla cslr csra csrc csrs cssa cssr csta cstc cstr csts ctab ctal ctan ctba ctbs ctca ctls ctns ctrc ctrl ctrn ctrs ctsa ctsc ctsn ctss ctta cttn ctts laaa laac laal laan laar laas laat laba labr labs laca lacc lacl lacs lact lala lall lan- lana lanc lann lans lant lara larb larc larn larr lars lart lasa lass last lata latc latn lats latt lbar lbcc lblr lbrs lbrt lbsc lcac lcat lcbc lcca lccc lccs lcls lcra lcrl lcrs lcsc lcsr lctl lcts llan llat llbs llcc llcs lllc llll lncr lntc lnts lrac lral lrat lrba lrcs lrrc lrrr lrst lrta lrts ls-r lsat lscb lscs lsla lsrc lssa lssr lsts ltac ltbl ltcc ltcs ltns ltnt ltra ltrs ltsa ltsr lttc lttr naaa naab naac naal naan naar naas naat naba nabc nabl nabs naca nacc nacl nacs nala nalc nall nals nalt nan- nana nanb nann nans nant nara narc narn narr nars nart nas- nasa nasb nasc nasl nasr nass nast nata natc natl nats natt nbaa nbar nbas nbbc nbca nbcc nbcs ncaa ncac ncar ncat ncba ncbc ncbs ncca nccc nccn nccr nccs ncct nclc ncln nclr ncna ncnc ncra ncrc ncsa ncsc ncsl ncss ncst ncta nctc nctr nlab nlat nlcc nlcs nlls nlra nlrb nlsc nnls nnnn nnsa nnsl nnss nntn nrab nras nrca nrcs nrlb nrna nrrc nrrl nrsa nrsc nrta nrtl nrts nsaa nsac nsar nsca nscc nscl nscs nsla nslr nsls nsna nsnr nsra nsrc nsrl nssa nssb nssc nssr nsss nstc nstl nsts ntbc ntcc ntla ntrc ntrl ntsb ntsc ntss nttr raab raan raas raat raba rabb rabl rabs rac- raca racc racs ract rala ralb rall ralt rana ranc rann rans rant rara rarb rars rasa rasc rasl rass rast rata rats ratt rbbb rbbr rbbs rbcl rbsl rbss rbst rcac rcas rcbc rccb rccc rccs rcls rcnl rcnr rcsa rcsc rcsl rcss rctc rcts rlab rlcs rlls rnal rnas rnbr rncs rnnt rras rrat rrna rrrr rsaa rscc rscn rscs rslc rsna rsnn rsnr rssa rssl rsts rtan rtas rtca rtcc rtls rtlt rtns rtss rtts sa-c saab saac saal saan saar saas saat saba sabb sabc sabr sabs saca sacc sacn sacr sacs sact sala salc sall sals salt sana sann sanr sans sant sara sarc sarl sarn sarr sars sart sasa sasc sasl sass sast sata satb satc satl satn satr sats satt sbaa sbac sbar sbas sbbs sbca sbcc sbcs sbct sbsa sbst sbtc sbtn scaa scab scac scal scan scar scas scat scba sccc sccl sccs scct scl- sclc scls scna scnr scnt scr- scra scrc scrn scrs scsa scsc scsl scsn scsr scst sctc sctl sctn sctr scts slaa slab slac slan