a-a a-c aaa aac aae aao aap aas aav ac- aca acc ace aco acp acs acv aea aec aee aeo aep aes aev aoa aoc aoe aoo aop aos aov ap- apa apc ape apo app aps apv as- asa asc ase aso asp ass asv av- ava avc ave avo avp avs c-- caa cac cae cao cap cas cav cca ccc cce cco ccp ccs ccv ce- cea cec cee ceo cep ces cev co- coa coc coe coo cop cos cov cpa cpc cpe cpo cpp cps cpv csa csc cse cso csp css csv cva cvc cve cvo cvp cvs cvv eaa eac eae eao eap eas eav ec- eca ecc ece eco ecs ecv eea eec eee eeo eep ees eev eo- eoa eoc eoe eoo eop eos ep- epa epc epe epo epp eps es- esa esc ese eso esp ess esv eva evc eve evo evp evs evv oaa oac oae oao oap oas oav oc- oca occ oco ocp ocs ocv oea oec oee oeo oep oes oo- ooa ooc ooo oop oos oov op- opa opc ope opo opp ops opv os- osa osc ose oso osp oss osv ov- ova ovc ove ovo ovp ovs ovv p-p paa pac pae pao pap pas pav pca pcc pce pco pcp pcs pcv pea pec pee peo pep pes pev poa poc poe poo pop pos pov ppa ppc ppe ppo ppp pps ppv ps- psa psc pse pso psp pss psv pva pvc pve pvo pvp pvs pvv saa sac sae sao sap sas sav sca scc sce sco scp scs scv se- sea sec see seo sep ses sev soa soc soe soo sop sos sov spa spc spe spo spp sps spv ss- ssa ssc sse sso ssp sss ssv sva svc sve svo svp svs svv v-a v-e vaa vac vae vao vap vas vav vca vcc vce vco vcp vcs vea vec vee veo vep ves voa voc voe voo vop vos vov vpa vpc vpe vpo vpp vps vsa vsc vse vso vsp vss vsv vva vvc vvo vvs vvv