a-a a-c a-t aaa aac aak aao aap aat aav ac- aca acc ack aco acp act acv aka akc akk ako akp akv aoa aoc aok aoo aop aot aov ap- apa apc apk apo app apt apv at- ata atc ato atp att atv av- ava avc avk avo avp avt c-- caa cac cak cao cap cat cav cca ccc cck cco ccp cct ccv cka ckc cko ckt co- coa coc cok coo cop cot cov cpa cpc cpk cpo cpp cpt cpv cta ctc ctk cto ctp ctt ctv cva cvc cvk cvo cvp cvt cvv k-t ka- kaa kac kak kao kap kat kav kca kcc kck kcp kct kkc kkk kkp kkt kkv koa koc kok koo kop kot kpa kpc kpk kpo kpp kpt kpv kta ktc ktk kto ktp ktt ktv kva kvk kvo kvp kvv oaa oac oak oao oap oat oav oc- oca occ ock oco ocp oct ocv oka okc okk oko okp oo- ooa ooc ook ooo oop oot oov op- opa opc opk opo opp opt opv ot- ota otc otk oto otp ott otv ov- ova ovc ovo ovp ovv p-p paa pac pak pao pap pat pav pca pcc pck pco pcp pct pcv pka pkc pko pkp pkt poa poc pok poo pop pot pov ppa ppc ppk ppo ppp ppt ppv pt- pta ptc ptk pto ptp ptt ptv pva pvc pvk pvo pvp pvt pvv taa tac tak tao tap tat tav tca tcc tck tco tcp tct tcv tka tkc tkk tko tkp tkt to- toa toc tok too top tot tov tpa tpc tpk tpo tpp tpt tpv tta ttc ttk tto ttp ttt ttv tva tvc tvk tvo tvp tvt v-a vaa vac vak vao vap vat vav vca vcc vco vcp vct vka vkp vkt voa voc vok voo vop vot vov vpa vpc vpk vpo vpp vpt vta vtc vtk vto vtt vtv vva vvc vvo vvt vvv