-vac aaaa aaac aaae aaap aaav aaca aacc aace aacp aact aacv aaea aaec aaep aaev aapa aapc aapt aata aatc aatt aava ac-t acaa acac acae acap acat acca accc acce accp acct ace- acea acec acet acev acpa acpe acpt acta actc acte actt actv acvv aeac aeap aect aeta aetc aett aeva apac apap apat apca apcc apea apec apep apet apev appa appc appt apta aptc apte aptt aptv at-t ataa atac atae atap atat atca atcc atea atec atee atep atta atte attp avat avcc avce avea avec avva caaa caac caap caat cac- caca cacc cace caec capa capc cape capp capt cat- cata catc cate catt catv cava cave ccaa ccac ccap ccat ccca cccc cccp cccv ccee ccpa ccpe ccpp cctc cctt cctv ceac ceat cec- ceca cece cecp cect ceec cepa cepc cepe cepp cept cet- ceta cete cetp cetv ceva cpaa cpac cpap cpca cpce cpea cpep cppa cptp cpvc cpvt ctae ctca ctcp ctec ctep ctpp ctta ctvt cvac cvca cvcc cvet cvte eaca eacc eaec eapc eapp eata eate eave eavp ecaa ecac ecat ecca eccc ecce ecct ecpa ecpp ect- ecta ectc ectv eeca eeea eeee eeta eetc eete eeva epaa epac epcc epec epee eppa eppc eppp epta epte eptv etap etat etcc etec etee etta ette evac evae evap evat evea evet paap paat paca pace pact paea paec paep papa pape papp pata pate patt pava pave pcaa pcae pcap pcca pccc pcce pcea pcep pcpp pcte pctv peac peap peat peca pece pect peec peep peet peev pepa pepe peta pete pett ppac ppap ppcc pppa pppp ppta pptt pptv ptca ptcc pttc pvpa taa- taat taca tacc tace tact tacv taec tapa tape tapp tapt tata tate tatt tatv tava tave tcap tcca tccc tcep tcpa tctc teac teat teca tect teec teet teev tepa tepe tepp teta tete tett teva tpac tpap tpcp tppa tppp tpte tptp ttcp tttt tvac tvpa tvtv vaat vaca vace vapa vape vata vate vatt vava vcat veat vecc veep veet vepe veta vete veve vpat vtac vtap vtec vvvv