a-ii aaaa aaac aaai aaar aaca aacc aaci aaco aacr aact aaic aaii aaoo aara aarc aari aaro aart aata aatc aatt ac-t acaa acac acai acar acat acca accc acci acco acct aci- acia acic acir acoa acor acot acr- acra acrc acri acro acrr acta actc acti acto actt aiai aica aicc aicr aiia aiic aiir aioc aioi aira airi airo airt aita aiti aitr aitt aoca aora aort aotc arac arai arar arat arc- arca arci arco arct aria arii ario arit aroa aroi aroo aror arr- arra arrc arri arro arrr arrt arta artc arti arto artr at-t ataa atac atai atar atat atca atcc atco atcr atia atic atit atoc atoi ator atot atra atrc atri atro atta atti atto attr caaa caac caat cac- caca cacc caci caco cacr caia caic caio cair cait caoi caor cara carc cari caro carr cart cat- cata catc cati cato catt ccaa ccac ccai ccar ccat ccca cccc ccci ccic ccii ccir ccoc ccra ccrc ccri ccrt cctc cctt ciaa ciao ciar ciat cica cicc cici cico cicr cict ciia ciii ciit cior cira circ ciri ciro cirr cirt cita citi cito citt coai coat coca coco coct coia coir coit coot cor- cora corc cori coro corr cort cota cotc coti coto cott crac crai crar crat crca crcc crcr cria cric crit croc croo cror crot crrt crtc ctca ctia ctic ctor ctot ctrc ctta iaaa iaac iaai iaat iaca iacc iacr iact iaia iara iarc iart iata iatc iati icaa icac icai icao icar icat icca iccc icci icco iccr icct icoc icor icra icrc icrr icrt icta iiac iica iiii iiio iiit iioi iioo iira iirc iita iitr iitt ioci ioii ioio ioit iooi iooo iora iori iota ioto irac irai irao irar irca ircc iri- iria iric irio iroc irra irrc irri irta irti itaa itac itai itar itat itia itic itoi itoo itor itra itri itta itto oaic oara ocac ocat occa occc occi occt ocra ocro ocrr oct- octa octi octo oici oiii oira oirt oita oitc oiti ooaa oocr ooia oooo oora oort orac orai orao orar orat orca orci orco ori- oria oric orio orit oro- oror orot orra orri orro orta ortc orto otac otar otic otit oto- otoo otor otra otro otta otti otto raat rac- raca racc raci raco ract raia raic raii rair rait raoc rara rari raro rata rati rato ratt rcac rccc rcic rctc rcti riaa riai riat rica ricc rico rict riia riot riri rita riti rito ritt roar roat roca rocc roco roia roio roir roit rooi roor root rora rorc rori roro rort rota rotc roti roto rotr rott rrat rrrr rtai rtca rtcc taa- taar taat taca tacc taci taco tact taia taio tair tait taoa taor tara tarc tari taro tarr tart tata tati tato tatr tatt tcca tccc tctc tiaa tiao tiar tica ticc tico tiit tira tiri tiro tirr tita titc titi tito titt toat toca toci toco toit tooa toor toot tora torc tori toro torr tort tota totc toti toto totr tott traa trac trai trao trat trca trcc tri- tria tric trio trit troa troc troi troo trot trra trtc trtr tttt