// Problem: 1187_G. Gang Up
// Time complexity: cubic
import java.util.*;
import java.io.*;

public class GG {
    public static void main(String[] args) {
        FastScanner scanner = new FastScanner();
        PrintWriter out = new PrintWriter(System.out);
        int N = scanner.nextInt();
        int M = scanner.nextInt();
        int K = scanner.nextInt();
        int C = scanner.nextInt();
        int D = scanner.nextInt();
        MinCostMaxFlowSolver solver = new EdmondsKarp();
        int[] people = new int[K];
        for(int i = 0; i < K; i++) people[i] = scanner.nextInt()-1;
        Node src = solver.addNode();
        Node snk = solver.addNode();
        int amt = 350;
        Node[][] timeNodes = new Node[N][amt];
        for(int i = 0; i < N; i++) {
            for(int j = 1; j < amt; j++) {
                timeNodes[i][j] = solver.addNode();
                if (j > 1) solver.link(timeNodes[i][j-1], timeNodes[i][j], Integer.MAX_VALUE, 0);
            }
        }
        for(int i = 0; i < K; i++) {
            solver.link(src, timeNodes[people[i]][1], 1, 0);
        }
        for(int i = 1; i < amt; i++) {
            for(int j = 0; j < K; j++) {
                solver.link(timeNodes[0][i], snk, 1, C*i-C);
            }
        }
        for(int i =0; i < M; i++) {
            int a = scanner.nextInt()-1;
            int b = scanner.nextInt()-1;
            for(int j = 1; j < amt-1; j++) {
                int prev = 0;
                for(int k = 1; k <= K; k++) {
                    solver.link(timeNodes[a][j], timeNodes[b][j + 1], 1, D*k*k- prev);
                    solver.link(timeNodes[b][j], timeNodes[a][j + 1], 1, D*k*k - prev);
                    prev = D * k * k;
                }
            }
        }
        long[] ret = solver.getMinCostMaxFlow(src, snk);
        out.println(ret[1]);
        out.flush();
    }
   
    public static class Node {
        // thou shall not create nodes except through addNode()
        private Node() { }
        
        List<Edge> edges = new ArrayList<Edge>();
        int index;          // index in nodes array
        
    }
    
    public static class Edge
    {
        boolean forward; // true: edge is in original graph
        Node from, to;   // nodes connected
        long flow;        // current flow
        final long capacity;
        Edge dual;      // reference to this edge's dual
        long cost;      // only used for MinCost.
        protected Edge(Node s, Node d, long c, boolean f)
        {
            forward = f;
            from = s;
            to = d;
            capacity = c;
        }
        long remaining() { return capacity - flow; }
        void addFlow(long amount) {
            flow += amount;
            dual.flow -= amount;
        }
    }
    
    public static abstract class MaxFlowSolver {
        List<Node> nodes = new ArrayList<Node>();
    
        public void link(Node n1, Node n2, long capacity) {
            link(n1, n2, capacity, 1);
        }
    
        public void link(Node n1, Node n2, long capacity, long cost) {
            Edge e12 = new Edge(n1, n2, capacity, true);
            Edge e21 = new Edge(n2, n1, 0, false);
            e12.dual = e21;
            e21.dual = e12;
            n1.edges.add(e12);
            n2.edges.add(e21);
            e12.cost = cost;
            e21.cost = -cost;
        }
        void link(int n1, int n2, long capacity) {
            link(nodes.get(n1), nodes.get(n2), capacity);
        }
        protected MaxFlowSolver(int n) {
            for (int i = 0; i < n; i++)
                addNode();
        }
        protected MaxFlowSolver() {
            this(0);
        }
    
        public abstract long getMaxFlow(Node src, Node snk);
        public Node addNode() {
            Node n = new Node();
            n.index = nodes.size();
            nodes.add(n);
            return n;
        }
    }
    static abstract class MinCostMaxFlowSolver extends MaxFlowSolver {
        // returns [maxflow, mincost]
        abstract long [] getMinCostMaxFlow(Node src, Node snk);
        // unavoidable boiler plate
        MinCostMaxFlowSolver ()      { this(0); }
        MinCostMaxFlowSolver (int n) { super(n); }
    }
    
    static class EdmondsKarp extends MinCostMaxFlowSolver
    {
        EdmondsKarp ()      { this(0); }
        EdmondsKarp (int n) { super(n); }
        long minCost;
        
        @Override
        public long [] getMinCostMaxFlow(Node src, Node snk) {
            long maxflow = getMaxFlow(src, snk);
            return new long [] { maxflow, minCost };
        }
        static final long INF = Long.MAX_VALUE/4;
        
        @Override
        public long getMaxFlow(Node src, Node snk) {
            final int n = nodes.size();
            final int source = src.index;
            final int sink = snk.index;
            long flow = 0;
            long cost = 0;
            long[] potential = new long[n]; // allows Dijkstra to work with negative edge weights
            while (true) {
                Edge[] parent = new Edge[n]; // used to store an augmenting path
                long[] dist = new long[n]; // minimal cost to vertex
                Arrays.fill(dist, INF);
                dist[source] = 0;
                PriorityQueue<Item> que = new PriorityQueue<Item>();
                que.add(new Item(0, source));
                while (!que.isEmpty()) {
                    Item item = que.poll();
                    if (item.dist != dist[item.v])
                        continue;
                    
                    for (Edge e : nodes.get(item.v).edges) {
                        long temp = dist[item.v] + e.cost + potential[item.v] - potential[e.to.index];
                        if (e.capacity > e.flow && dist[e.to.index] > temp) {
                            dist[e.to.index] = temp;
                            parent[e.to.index] = e;
                            que.add(new Item(temp, e.to.index));
                        }
                    }
                }
                if (parent[sink] == null)
                    break;
                for (int i = 0; i < n; i++)
                    if (parent[i] != null)
                        potential[i] += dist[i];
                long augFlow = Long.MAX_VALUE;
                for (int i = sink; i != source; i = parent[i].from.index)
                    augFlow = Math.min(augFlow, parent[i].capacity - parent[i].flow);
                for (int i = sink; i != source; i = parent[i].from.index) {
                    Edge e = parent[i];
                    e.addFlow(augFlow);
                    cost += augFlow * e.cost;
                }
                flow += augFlow;
            }
            
            minCost = cost;
            return flow;
        }
        
        static class Item implements Comparable<Item> {
            long dist;
            int v;
            
            public Item(long dist, int v) {
                this.dist = dist;
                this.v = v;
            }
            
            public int compareTo(Item that) {
                return Long.compare(this.dist, that.dist);
            }
        }
    }
    
    public static class FastScanner {
        BufferedReader br;
        StringTokenizer st;
        
        public FastScanner(Reader in) {
            br = new BufferedReader(in);
        }
        
        public FastScanner() {
            this(new InputStreamReader(System.in));
        }
        
        String next() {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        }
        
        int nextInt() {
            return Integer.parseInt(next());
        }
        
        long nextLong() {
            return Long.parseLong(next());
        }
        
        double nextDouble() {
            return Double.parseDouble(next());
        }
        
        String readNextLine() {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        }
        
        int[] readIntArray(int n) {
            int[] a = new int[n];
            for (int idx = 0; idx < n; idx++) {
                a[idx] = nextInt();
            }
            return a;
        }
    }
}