a-do aaaa aaac aaad aaar aaca aacc aacd aaco aacr aact aada aadc aadt aaoo aara aarc aard aaro aart aata aatc aatt ac-t acaa acac acad acar acat acca accc accd acco acct acda acdc acdt acoa acod acor acot acr- acra acrc acro acrr acta actc acto actt adaa adac adad adao adar adat adcc adda addc addd addo addr adoc adod adoo ador adot adra adro adta aoca aora aort aotc aotd arac arad arar arat arc- arca arco arct arda ardc ardo aroa arod aroo aror arr- arra arrc arro arrr arrt arta artc arto artr at-t ataa atac atad atar atat atca atcc atco atcr atdt atoc atod ator atot atra atrc atro atta atto attr c-cd caaa caac caat cac- caca cacc caco cacr cada cadc cadd cado cadr caod caor cara carc card caro carr cart cat- cata catc catd cato catt ccaa ccac ccad ccar ccat ccca cccc ccdc ccdr ccoc ccod ccra ccrc ccrt cctc cctt cd-r cdaa cdac cdad cdda cddr cdot coad coat coca coco coct coda codd cood coot cor- cora corc cord coro corr cort cota cotc coto cott crac crar crat crca crcc crcr crda crdc croc crod croo cror crot crrt crtc ctca ctor ctot ctrc ctta daad daar daca dact dada dado dara darc dard daro darr dart data dato datr datt dcca dccc dcct dcra dctc dddd ddoc ddot ddrc doar doat doca doco doct dod- doda dodd dodo dood door doot dora dorc dord doro dorr dort dota dotd doto dott draa drac drad drar drat drca drda drod drot drra dtaa dtac dtcc dtor dtot oara ocac ocad ocat occa occc occt ocra ocro ocrr oct- octa octo odac odda oddd odoo odor odot odra ooaa oocr ooda oooo oora oord oort orac orad orao orar orat orca orco orda ordo oro- oror orot orra orro orta ortc orto otac otar otcd oto- otoo otor otra otro otta otto raad raat rac- raca racc raco ract rada radc radd rado radr radt raoc rara raro rata rato ratt rcac rccc rcdc rcrd rctc rdac rdoc road roar roat roca rocc roco roda rodd rodo rood roor root rora rorc roro rort rota rotc roto rotr rott rrad rrat rrrr rtca rtcc rtdt taa- taar taat taca tacc taco tact tada tado taoa taor tara tarc tard taro tarr tart tata tato tatr tatt tcad tcca tccc tcdd tctc tdac tdor tdra toad toat toca toco toda todd todo todt tooa tood toor toot tora torc tord toro torr tort tota totc totd toto totr tott traa trac trad trao trat trca trcc troa troc trod troo trot trra trtc trtr tttt