from sys import stdin
N,M=map(int,stdin.readline().split())
G=[[] for _ in range(N)]
for _ in range(M):
  A,B=map(int,stdin.readline().split())
  A-=1
  B-=1
  G[A].append(B)
  G[B].append(A)

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


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(stdin.readline())
Qs=[]
ans=[10**12]*Q
for i in range(Q):
  Qs.append(list(map(lambda x:int(x)-1,stdin.readline().split())))

for i in range(1<<10):
  root=[-1]*N
  for j in range(N):
    if root[j]!=-1:
      continue
    root[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[k]==-1 and (i>>C[k]&1):
          root[k]=j
          q.append(k)
  for j in range(Q):
    if root[Qs[j][0]]==root[Qs[j][1]]:
      ans[j]=min(ans[j],cost[i])
for i in ans:
  if i==10**12:
    i=-1
  print(i)