-ana -vac aaaa aaac aaan aaar aaav aaca aacc aacn aacr aact aacv aana aara aarc aart aata aatc aatt aava ac-t acaa acac acan acar acat acca accc acct acr- acra acrc acrr acrv acta actc actt actv acvv ana- anaa anac anan anar anat anca ancc anct anna annt anrc ant- anta antr antt antv arac aran arar arat arc- arca arct arna arnt arr- arra arrc arrr arrt arta artc artr artv arva arvn at-t ataa atac atan atar atat atca atcc atcr atna atra atrc atrn atta attn attr avan avar avat avcc avra avva caaa caac caan caat cac- caca cacc cacr cana canc cann cant cara carc carn carr cart cat- cata catc catt catv cava ccaa ccac ccar ccat ccca cccc cccv ccna ccnc ccnr ccra ccrc ccrt cctc cctt cctv cnaa cnac cnna cnrc cnrr cnrt cnta cntc cntr crac cran crar crat crca crcc crcr crna crrt crtc crtv ctan ctca ctrc ctrn ctta cttn ctvt cvac cvar cvca cvcc cvra cvrr n-tv naaa naac naan naar naat naca nacc nan- nana nann nant nara narc narn narr nart nata natc natt natv nava navr navv ncaa ncac ncar ncat ncca nccc nccn nccr ncct ncna ncnc ncra ncrc ncta nctc nctr nctv nnnn nntn nnvt nrca nrna nrrc nrta ntcc ntrc nttr nttv nvcc nvtc nvtv raan raat rac- raca racc ract racv rana ranc rann rant rara rata ratt rava rcac rccc rcnr rctc rctv rcvr rnnt rrat rrna rrrr rtan rtca rtcc rtva rv-c rvca taa- taan taar taat taca tacc tact tacv tana tann tant tara tarc tarn tarr tart tata tatr tatt tatv tava tcca tccc tcnn tctc tnca tncc traa trac tran trat trav trca trcc trna trra trtc trtr ttcn tttt tvac tvrr tvtv vaan vaar vaat vaca vana vanc vann vant vara varn varr vart vata vatt vava vcat vnav vrac vran vrav vrnn vtac vvvv