from sys import stdin
input = stdin.readline
n = int(input()); l = n.bit_length()
h = list(map(int,input().split()))
t = list(map(int,input().split()))
itov = sorted(set(h)|set(t)); m = len(itov)
vtoi = {v:i for i,v in enumerate(itov)}
for i in range(n): h[i] = vtoi[h[i]]; t[i] = vtoi[t[i]]
tele = list(range(m)); ht = [(u,v) for u,v in zip(h,t)]
for u,v in sorted(ht): tele[u] = max(tele[u],v)
for i in range(m-1): tele[i+1] = max(tele[i+1],tele[i])
doub = [tele]+[[0]*m for _ in range(l)]
for i in range(l):
    for j in range(m):
        doub[i+1][j] = max(doub[i][doub[i][j]],doub[i][j])
for _ in range(int(input())):
    a,b = map(int,input().split())
    x = t[a-1]; y = h[b-1]; ans = 1
    if y>doub[l][x]: print(-1); continue
    for i in range(l-1,-1,-1):
        if doub[i][x]<y: x = doub[i][x]; ans += 2**i
    print(ans+(x<y))