aaaa aaab aaac aaap aaar aaas aaba aabb aabc aabp aabt aaca aacb aacc aaco aacp aacr aacs aact aaoo aapa aapc aapo aaps aapt aara aarc aaro aarp aars aart aasa aasc aass aast aata aatc aatt abaa abab abac abap abar abas abat abb- abba abbb abbo abbr abbs abbt abca abcb abcc abcp abcr abcs abct aboa abob aboo abor abos abot abpa abpc abpp abpr abps abra abrc abro abrs abs- absa absp abss abta abts ac-t acaa acab acac acap acar acas acat acba acca accc acco accp accs acct acoa acop acor acos acot acpa acpr acps acpt acr- acra acrc acro acrr acrs acsa acsc acss acst acta actc acto acts actt aoba aoca aocs aopo aora aorb aors aort aosp aoss aotc apac apao apap apar apas apat apba apbr apbs apca apcb apcc apco apcr apcs apo- apoc apoo apop apor apos apot appa appc appr apps appt apra aprc apro aprs aprt apsa apso apss apta aptc apts aptt arab arac arap arar aras arat arba arbs arc- arca arco arcs arct aroa arob aroo aror aros arpa arps arr- arra arrc arro arrr arrs arrt ars- arsa arsc arso arst arta artc arto artr arts asaa asab asac asao asap asar asas asat asba asbo asc- asca ascb ascc asco ascp ascr asct asob asoc asop asor asos asot aspa aspc aspo aspr asps aspt asra asrc asro asrs assa assc asso assp assr asss asst asta astb astc asto astp astr asts at-t ataa atab atac atap atar atas atat atbs atca atcc atco atcr atcs atob atoc atop ator atos atot atpr atra atrc atro atrp atsb atsc atst atta atto attp attr atts baaa baar baas baat baba babb babo babr babs bac- baca bacc baco bacs bact baos bapa bapc bapp baps bapt bar- bara barb barc baro barr bars bart basa basc baso bass bast bata batc bato bats batt bbas bbbb bbbs bbpr bbrc bcaa bcap bcar bcas bcat bcbc bcbp bcbs bcca bccc bccs bcor bcos bcpp bcps bcra bcrs bcsa bcsc bcss bctc bcts boab boac boar boas boat boba bobb bobo bobs boca boco bocs boob booc boop boor boos boot bopa bopp bops bor- bora boro borr bors bort bosa bosc boso boss bost bota botb boto bots bott bpcp bpot bprc bpsa brab brac brao bras brat brca brcb broa brob broc broo bror bros brot brrr brrs brsb brsr brst brtc bsaa bsac bsap bsas bsat bscp bscs bsos bspp bspr bsra bssc bsts btaa btbp btcc btcs btob btor btps btrc btrt btss bttb c-bo caaa caab caac caap caas caat caba cabo cabs cac- caca cacc caco cacr caor caos capa capb capc capo capp caps capt cara carb carc caro carp carr cars cart casa casb casc caso casp casr cass cast cat- cata catb catc cato cats catt cbac cbar cbat cbbc cbbs cbca cbcc cbcp cbcr cbcs cbct cbot cbpc cbpp cbrt cbsa cbsc cbta cbtc ccaa ccab ccac ccap ccar ccas ccat ccba ccbc ccca cccb cccc cccp cccs ccob ccoc ccpa ccpp ccpr ccps ccra ccrc ccrp ccrs ccrt ccsa ccsp ccss ccst cctb cctc cctt coas coat coba cobb cobo cobs coca coco cocp coct coob coop coos coot copa copo copp copr cops copt cor- cora corb corc coro corp corr cors cort cosa cosc coso cosp coss cost cota cotb cotc coto cots cott cpaa cpac cpap cpas cpbc cpca cpcs cpos cppa cpps cprs cprt cpsa cpsc cpso cpsr cptp cptr cpts crab crac crap crar cras crat crbc crca crcc crcr crob croc croo crop cror crot crpc crps crrt crsa crsp crss crst crtc crtp crts csaa csab csac csao csar csas csat cscb cscc csco cscr cscs csob csor csos csot cspa cspb cspc csps cspt csra csrc csrs cssa cssr csta cstc csto cstr csts ctab ctba ctbs ctca ctcp ctor ctos ctot ctpo ctpp ctps ctrc ctrp ctrs ctsa ctsc ctss ctta ctts oaps oara oars oasc oass oast oats obas obba obbo obor obos obot obra obro obsr obss obst obts ocab ocac ocap ocas ocat ocbc occa occc occt ocos ocpa ocpp ocra ocro ocrr ocrs ocsa oct- octa octo octs ooaa ooba oocr oooo ooos oops oora oort oosa oost ootb ootp oots opap opar opca opo- opor opos oppa oppo opps opra opsa opto opts orab orac orao orar oras orat orba orbb orbo orbs orca orco orcs oro- oror oros orot orpc orps orra orro orrs orsa orso orta ortc orto orts osap osar osas osat osba osbp osca oscc osco osoo osor osos osro ossa ossb osso osta ostc ostr osts otac otap otar otas otbs oto- otoo otor otos otpp otra otro otrs otsa otso otta otto otts paap paar paas paat paba pabt paca paco pacs pact paoc paos papa papb papp papr paps par- para parc paro parp parr pars part pasa pasc paso pasp pass past pata pato patr pats patt pbac pbar pbcc pboc pbpa pbrs pbsa pbsp pcaa pcap pcas pcba pcbc pcbs pcca pccc pccs pcoa pcos pcpb pcpp pcps pcra pcrc pcsa pcso pcts poar poas poat poba pobo pobs poca poco pocs poop poor poos poot pop- popa popc popo popp pops popt pora porb porc poro porr pors port posa posb poso poss post pota potc poto pots pott ppac ppap ppar ppcc ppcs ppoa ppos pppa pppo pppp ppps pprc ppss ppta ppts pptt prao prar pras prat prbc prbs prca prcc prcp prcs pro- proa prob proc proo prop pros prot prps prrs prsa prsc prso prss prtc prtp prtr psac psap psas psat psbr psbt psca psco psoa psoc psos pspp pspr psps psrp pssa pssc psso psst psts ptab ptas ptca ptcc ptop ptsa pttc raab raas raat raba rabb rabo rabs rac- raca racc raco racs ract raob raoc raop raos rapa rapc rapp raps rapt rara rarb raro rars