N,M=map(int,input().split())
G=[[] for _ in range(N)]
for _ in range(M):
  A,B=map(int,input().split())
  A-=1
  B-=1
  G[A].append(B)
  G[B].append(A)

C=list(map(lambda x:int(x)-1,input().split()))
W=list(map(int,input().split()))

root=[[-1]*N for _ in range(1<<10)]
for i in range(1<<10):
  for j in range(N):
    if root[i][j]!=-1:
      continue
    root[i][j]=j
    if (i>>C[j]&1)==0:
      continue
    q=[]
    l=0
    q.append(j)
    while len(q)>l:
      v=q[l]
      l+=1
      for k in G[v]:
        if root[i][k]==-1 and (i>>C[k]&1):
          root[i][k]=j
          q.append(k)

cost=[0]*(1<<10)
for i in range(1<<10):
  for j in range(10):
    if i>>j&1:
      cost[i]+=W[j]

Q=int(input())
for _ in range(Q):
  U,V=map(int,input().split())
  U-=1
  V-=1
  ans=10**11
  for i in range(1<<10):
    if root[i][U]==root[i][V]:
      ans=min(ans,cost[i])
  if ans==10**11:
    ans=-1
  print(ans)