from collections import deque
N,M=map(int,input().split())
G=[[] for _ in range(N)]
for i in range(M):
    a,b=map(int,input().split())
    G[a-1].append(b-1)
    G[b-1].append(a-1)
C=list(map(int,input().split()))
W=list(map(int,input().split()))
Group=[[-1]*N for _ in range(2**10)]
cost=[0]*(2**10)
for i in range(1,2**10):
    T=0
    w=0
    S=set()
    c=0
    for j in range(10):
        if((i>>j)&1):
            S.add(j+1)
            c+=W[j]
    cost[i]=c
    # que=deque([0])
    # Group[i][0]=w
    while T<N:
        que=deque([T])
        Group[i][T]=w
        while len(que):
            p=que.popleft()
            for q in G[p]:
                if(C[p] in S and C[q] in S and Group[i][q]==-1):
                    Group[i][q]=Group[i][p]
                    que.append(q)
        while T<N and Group[i][T]!=-1:
            T+=1
        w+=1
Q=int(input())
answers=[]
for _ in range(Q):
    ans=-1
    u,v=map(int,input().split())
    u-=1
    v-=1
    for j in range(1,2**10):
        if(Group[j][u]==Group[j][v]):
            if(ans==-1 or cost[j]<ans):
                ans=cost[j]
    answers.append(ans)
for ans in answers:
    print(ans)