-vac aaaa aaac aaav aaca aacc aaco aact aacu aacv aaoo aata aatc aatt aava ac-t acaa acac acat acca accc acco acct accu acoa acot acou acta actc acto actt actu actv acu- acuo acut acvv aoca aotc aout at-t ataa atac atat atca atcc atco atoc atot atta atto attu atua atuc auaa auca auct aut- auto avao avat avcc avco avot avou avva avvo caaa caac caat cac- caca cacc caco cat- cata catc cato catt catu catv cauc cauo caut cava cavo cavu ccaa ccac ccat ccca cccc cccu cccv ccoc cctc cctt cctv ccuc ccut ccvo coat coca coco coct cocu coot cota cotc coto cott cotu coua cout cova covo ctca ctot ctta ctvo ctvt cuau cuca cucc cut- cuta cutc cuto cutt cutv cvac cvca cvcc oaau ocac ocat occa occc occt oct- octa octo ooaa oooo otac oto- otoo otov otta otto ottu ouac ouat oucc out- outa outo ouu- ovo- ovoo ovot taa- taat taca tacc taco tact tacv taoa taou tata tato tatt tatu tatv taua tauc taut tava tavo tcca tccc tccu tcov tctc toat toau toca toco tooa toot tota totc toto tott tout touv tova tovo tttt tuao tuat tuca tucc tuco tuta tuto tutt tutu tuuo tuva tvac tvtv uaca uaoc uata uatu uatv uaua ucat ucav ucca uctv ucua ucut uocc uovo utac utau utto uttu uuoc uuta uuuu uv-a uv-c uvaa uvac uvat uvvu vaat vaca vaco vata vato vatt vatu vaut vava vcat voat voca vooc voot vota voto vout vtac vuca vuco vutv vvvv