-ana -vac aaaa aaac aaan aaav aaca aacc aacn aact aacv aana aata aatc aatt aava ac-t acaa acac acan acat acca accc acct acta actc actt actv acvv ana- anaa anac anan anat anca ancc anct anna annt ant- anta antt antv at-t ataa atac atan atat atca atcc atna atta attn avan avat avcc avva caaa caac caan caat cac- caca cacc cana canc cann cant cat- cata catc catt catv cava ccaa ccac ccat ccca cccc cccv ccna ccnc cctc cctt cctv cnaa cnac cnna cnta cntc ctan ctca ctta cttn ctvt cvac cvca cvcc n-tv naaa naac naan naat naca nacc nan- nana nann nant nata natc natt natv nava navv ncaa ncac ncat ncca nccc nccn ncct ncna ncnc ncta nctc nctv nnnn nntn nnvt ntcc nttv nvcc nvtc nvtv taa- taan taat taca tacc tact tacv tana tann tant tata tatt tatv tava tcca tccc tcnn tctc tnca tncc ttcn tttt tvac tvtv vaan vaat vaca vana vanc vann vant vata vatt vava vcat vnav vtac vvvv