class unif:
  def __init__(self,n):
    self.pare=[-1]*n
    self.size=[1]*n
  def root(self,x):
    while self.pare[x]!=-1:
      x=self.pare[x]
    return x
  def unite(self,u,v):
    rootu=self.root(u)
    rootv=self.root(v)
    if rootu!=rootv:
      if self.size[rootu]>=self.size[rootv]:
        self.pare[rootv]=rootu
        self.size[rootu]+=self.size[rootv]
      else:
        self.pare[rootu]=rootv
        self.size[rootv]+=self.size[rootu]
  def same(self,s,t):
    return self.root(s)==self.root(t)
N,M=map(int,input().split())
L=[]
for i in range(M):
  a,b=map(int,input().split())
  L.append((a-1,b-1))
C=list(map(int,input().split()))
for i in range(N):
  C[i]-=1
W=list(map(int,input().split()))
Q=int(input())
result=[10**15]*Q
q=[]
for _ in range(Q):
  u,v=map(int,input().split())
  q.append((u-1,v-1))
for bit in range(1,2**10):
  cost=0
  for k in range(10):
    if (bit>>k)&1:
      cost+=W[k]
  Z=unif(N)
  for i in range(M):
    a,b=L[i][:]
    if (bit>>C[a])&1 and (bit>>C[b])&1:
      Z.unite(a,b)
  for i in range(Q):
    u,v=q[i][:]
    if Z.same(u,v):
      result[i]=min(result[i],cost)
for i in range(Q):
  if result[i]<10**14:
    print(result[i])
  else:
    print(-1)