a-a a-i aaa aae aai aap aav aax aea aee aei aep aev aex ai- aia aie aii aip aiv aix ap- apa ape api app apv apx av- ava ave avi avp avx ax- axa axe axi axp axv axx eaa eae eai eap eav eax eea eee eep eev eex eia eie eii eip eiv eix ep- epa epe epi epp epx eva eve evi evp evv ex- exa exe exi exp exx i-v ia- iaa iae iai iap iav ie- iea iee iei iep iev iex iia iie iii iip iix ipa ipe ipi ipp ipv ipx iva ive ivi ivp ivv ivx ixe ixi p-p paa pae pai pap pav pax pea pee pei pep pev pex pia pie pii pip piv pix ppa ppe ppi ppp ppv ppx pva pve pvi pvp pvv pxe v-a v-e vaa vae vai vap vav vax vea vee vei vep vex vi- via vie vii vip viv vix vpa vpe vpi vpp vpx vva vvi vvv vxa vxv xaa xap xav xee xep xev xex xia xie xii xiv xix xpa xpe xpp xvi xxi xxp xxv xxx