sentences:  The Mid and West Wales region consists of the constituencies of Brecon and Radnorshire, Carmarthen East and Dinefwr, Carmarthen West and South Pembrokeshire, Ceredigion, Dwyfor Meirionnydd, Llanelli, Montgomeryshire and Preseli Pembrokeshire.In general elections for the Senedd each voter has two votes.The first vote may be used to vote for a candidate to become the Member of the Senedd for the voter's constituency, elected by the first-past-the-post system.