-vac aaaa aaac aaaf aaar aaav aaca aacc aacf aacr aacv aafa aafc aaff aara aarc aava acaa acac acar acca accc accf acfc acr- acra acrc acrr acrv acvv afaa afar afca afcc affa affc afr- afra afrc arac araf arar arc- arca arfa arfc arff arr- arra arrc arrr arva avar avcc avra avva caaa caac caaf cac- caca cacc cacr cafa cafc caff cara carc carf carr cava ccaa ccac ccaf ccar ccca cccc cccf cccv ccfa ccfc ccff ccra ccrc ccrf cfaa cfac cfar cfav cfca cfcf cffr cfra crac craf crar crca crcc crcr crfc cvac cvar cvca cvcc cvfr cvra cvrr faaa faac faca facc fafa fafc faff fara farc farr fava favc fcar fcca fccf fcra ffar ffcc ffff ffrr fr-v frac frcc frfc raaf rac- raca racc racv rafa rafc raff rara rarf rava rcac rcaf rccc rcfc rcvr rffc rrfc rrrr rv-c rvca vaar vaca vafa vara varf varr vava vfcc vrac vrav vvvv