a-a a-c aaa aac aae aam aan aav ac- aca acc ace acm acn acv aea aec aee aem aen aev ama amc ame amm amn amv an- ana anc ane anm ann anv av- ava avc ave avm avn c-- caa cac cae cam can cav cca ccc cce ccm ccn ccv ce- cea cec cee cem cen cev cma cmc cme cmm cmn cmv cn- cna cnc cne cnm cnn cnv cva cvc cve cvm cvn cvv eaa eac eae eam ean eav ec- eca ecc ece ecm ecn ecv eea eec eee eem een eev em- ema emc eme emm emn emv en- ena enc ene enm enn env eva evc eve evm evn evv m-v maa mac mae mam man mav mc- mca mcc mce mcm mcn mcv mea mec mee mem men mev mma mmc mme mmm mmn mmv mna mnc mne mnm mnn mva mvc mve mvm mvn mvv naa nac nae nam nan nav nca ncc nce ncm ncn ncv ne- nea nec nee nem nen nev nma nmc nme nmm nmn nna nnc nne nnm nnn nnv nva nvc nve nvm nvn nvv v-a v-e vaa vac vae vam van vav vca vcc vce vcm vcn vea vec vee vem ven vm- vma vmc vmm vmn vn- vna vnm vnv vva vvc vvm vvv