a-a a-c a-t aaa aac aao aap aas aat aav ac- aca acc aco acp acs act acv aoa aoc aoo aop aos aot aov ap- apa apc apo app aps apt apv as- asa asc aso asp ass ast asv at- ata atc ato atp ats att atv av- ava avc avo avp avs avt c-- caa cac cao cap cas cat cav cca ccc cco ccp ccs cct ccv co- coa coc coo cop cos cot cov cpa cpc cpo cpp cps cpt cpv csa csc cso csp css cst csv cta ctc cto ctp cts ctt ctv cva cvc cvo cvp cvs cvt cvv oaa oac oao oap oas oat oav oc- oca occ oco ocp ocs oct ocv oo- ooa ooc ooo oop oos oot oov op- opa opc opo opp ops opt opv os- osa osc oso osp oss ost osv ot- ota otc oto otp ots ott otv ov- ova ovc ovo ovp ovs ovv p-p paa pac pao pap pas pat pav pca pcc pco pcp pcs pct pcv poa poc poo pop pos pot pov ppa ppc ppo ppp pps ppt ppv ps- psa psc pso psp pss pst psv pt- pta ptc pto ptp pts ptt ptv pva pvc pvo pvp pvs pvt pvv saa sac sao sap sas sat sav sca scc sco scp scs sct scv soa soc soo sop sos sot sov spa spc spo spp sps spt spv ss- ssa ssc sso ssp sss sst ssv sta stc sto stp sts stt stv sva svc svo svp svs svt svv taa tac tao tap tas tat tav tca tcc tco tcp tcs tct tcv to- toa toc too top tos tot tov tpa tpc tpo tpp tps tpt tpv tsa tsc tso tsp tss tst tsv tta ttc tto ttp tts ttt ttv tva tvc tvo tvp tvs tvt v-a vaa vac vao vap vas vat vav vca vcc vco vcp vcs vct voa voc voo vop vos vot vov vpa vpc vpo vpp vps vpt vsa vsc vso vsp vss vst vsv vta vtc vto vts vtt vtv vva vvc vvo vvs vvt vvv