#include <cassert>
#include <cmath>
#include <cstdint>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <algorithm>
#include <bitset>
#include <complex>
#include <deque>
#include <functional>
#include <iostream>
#include <map>
#include <numeric>
#include <queue>
#include <set>
#include <sstream>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>

using namespace std;

using Int = long long;

template <class T1, class T2> ostream &operator<<(ostream &os, const pair<T1, T2> &a) { return os << "(" << a.first << ", " << a.second << ")"; };
template <class T> ostream &operator<<(ostream &os, const vector<T> &as) { const int sz = as.size(); os << "["; for (int i = 0; i < sz; ++i) { if (i >= 256) { os << ", ..."; break; } if (i > 0) { os << ", "; } os << as[i]; } return os << "]"; }
template <class T> void pv(T a, T b) { for (T i = a; i != b; ++i) cerr << *i << " "; cerr << endl; }
template <class T> bool chmin(T &t, const T &f) { if (t > f) { t = f; return true; } return false; }
template <class T> bool chmax(T &t, const T &f) { if (t < f) { t = f; return true; } return false; }


////////////////////////////////////////////////////////////////////////////////
template <unsigned M_> struct ModInt {
  static constexpr unsigned M = M_;
  unsigned x;
  constexpr ModInt() : x(0U) {}
  constexpr ModInt(unsigned x_) : x(x_ % M) {}
  constexpr ModInt(unsigned long long x_) : x(x_ % M) {}
  constexpr ModInt(int x_) : x(((x_ %= static_cast<int>(M)) < 0) ? (x_ + static_cast<int>(M)) : x_) {}
  constexpr ModInt(long long x_) : x(((x_ %= static_cast<long long>(M)) < 0) ? (x_ + static_cast<long long>(M)) : x_) {}
  ModInt &operator+=(const ModInt &a) { x = ((x += a.x) >= M) ? (x - M) : x; return *this; }
  ModInt &operator-=(const ModInt &a) { x = ((x -= a.x) >= M) ? (x + M) : x; return *this; }
  ModInt &operator*=(const ModInt &a) { x = (static_cast<unsigned long long>(x) * a.x) % M; return *this; }
  ModInt &operator/=(const ModInt &a) { return (*this *= a.inv()); }
  ModInt pow(long long e) const {
    if (e < 0) return inv().pow(-e);
    ModInt a = *this, b = 1U; for (; e; e >>= 1) { if (e & 1) b *= a; a *= a; } return b;
  }
  ModInt inv() const {
    unsigned a = M, b = x; int y = 0, z = 1;
    for (; b; ) { const unsigned q = a / b; const unsigned c = a - q * b; a = b; b = c; const int w = y - static_cast<int>(q) * z; y = z; z = w; }
    assert(a == 1U); return ModInt(y);
  }
  ModInt operator+() const { return *this; }
  ModInt operator-() const { ModInt a; a.x = x ? (M - x) : 0U; return a; }
  ModInt operator+(const ModInt &a) const { return (ModInt(*this) += a); }
  ModInt operator-(const ModInt &a) const { return (ModInt(*this) -= a); }
  ModInt operator*(const ModInt &a) const { return (ModInt(*this) *= a); }
  ModInt operator/(const ModInt &a) const { return (ModInt(*this) /= a); }
  template <class T> friend ModInt operator+(T a, const ModInt &b) { return (ModInt(a) += b); }
  template <class T> friend ModInt operator-(T a, const ModInt &b) { return (ModInt(a) -= b); }
  template <class T> friend ModInt operator*(T a, const ModInt &b) { return (ModInt(a) *= b); }
  template <class T> friend ModInt operator/(T a, const ModInt &b) { return (ModInt(a) /= b); }
  explicit operator bool() const { return x; }
  bool operator==(const ModInt &a) const { return (x == a.x); }
  bool operator!=(const ModInt &a) const { return (x != a.x); }
  friend std::ostream &operator<<(std::ostream &os, const ModInt &a) { return os << a.x; }
};
////////////////////////////////////////////////////////////////////////////////

constexpr unsigned MO = 998244353;
using Mint = ModInt<MO>;

constexpr int LIM_INV = 1010;
Mint inv[LIM_INV], fac[LIM_INV], invFac[LIM_INV];

void prepare() {
  inv[1] = 1;
  for (int i = 2; i < LIM_INV; ++i) {
    inv[i] = -((Mint::M / i) * inv[Mint::M % i]);
  }
  fac[0] = invFac[0] = 1;
  for (int i = 1; i < LIM_INV; ++i) {
    fac[i] = fac[i - 1] * i;
    invFac[i] = invFac[i - 1] * inv[i];
  }
}
Mint binom(Int n, Int k) {
  if (n < 0) {
    if (k >= 0) {
      return ((k & 1) ? -1 : +1) * binom(-n + k - 1, k);
    } else if (n - k >= 0) {
      return (((n - k) & 1) ? -1 : +1) * binom(-k - 1, n - k);
    } else {
      return 0;
    }
  } else {
    if (0 <= k && k <= n) {
      assert(n < LIM_INV);
      return fac[n] * invFac[k] * invFac[n - k];
    } else {
      return 0;
    }
  }
}

Mint interpolateIota(const vector<Mint> &fs, Mint x) {
  const int fsLen = fs.size();
  vector<Mint> prodR(fsLen + 1);
  prodR[fsLen] = 1;
  for (int i = fsLen; --i >= 0; ) prodR[i] = (x - i) * prodR[i + 1];
  Mint ans = 0;
  Mint prodL = 1;
  for (int i = 0; i < fsLen; ++i) {
    // (i - 0) ... (i - (i - 1)) (i - (i + 1)) ... (i - (fsLen - 1))
    ans += invFac[i] * (((fsLen - 1 - i) & 1) ? -1 : +1) *
           invFac[fsLen - 1 - i] * fs[i] * prodL * prodR[i + 1];
    prodL *= (x - i);
  }
  return ans;
}

Mint det(vector<vector<Mint>> a) {
  const int n = a.size();
  Mint ret = 1;
  for (int h = 0; h < n; ++h) {
    for (int i = h; i < n; ++i) if (a[i][h]) {
      if (h != i) {
        swap(a[h], a[i]);
        ret = -ret;
      }
      break;
    }
    ret *= a[h][h];
    if (!ret) break;
    const Mint s = a[h][h].inv();
    for (int j = h + 1; j < n; ++j) a[h][j] *= s;
    for (int i = h + 1; i < n; ++i) {
      const Mint t = a[i][h];
      if (t) for (int j = h + 1; j < n; ++j) a[i][j] -= t * a[h][j];
    }
  }
  return ret;
}


/*
  Talaska
  bidirectional edge: q, q
  matrix: GF of # of paths
  det = (disjoint flow) / (disjoint cycles)
  disjoint cycles = (1-q^2)^K
  disjoint flow: (disjoint paths) * (1-q^2)^(untouched cycles)
*/

int M, N, L, K;
vector<int> A, B;
vector<int> X, Y;

bool spe[110][110];
Mint dp[110][110];

int main() {
  prepare();
  
  for (; ~scanf("%d%d%d%d", &M, &N, &L, &K); ) {
    A.resize(L); for (int i = 0; i < L; ++i) scanf("%d", &A[i]);
    B.resize(L); for (int i = 0; i < L; ++i) scanf("%d", &B[i]);
    X.resize(K);
    Y.resize(K);
    for (int k = 0; k < K; ++k) {
      scanf("%d%d", &X[k], &Y[k]);
    }
    
    memset(spe, 0, sizeof(spe));
    for (int k = 0; k < K; ++k) {
      spe[X[k]][Y[k]    ] = true;
      spe[X[k]][Y[k] + 1] = true;
    }
    
    vector<Mint> fs(2 * K + 1);
    for (int q = 2; q <= 2 + 2 * K; ++q) {
      const Mint cycle = Mint(1 - q * q).inv();
// const Mint cycle=100;
      vector<vector<Mint>> a(L, vector<Mint>(L, 0));
      for (int i = 0; i < L; ++i) {
        memset(dp, 0, sizeof(dp));
        dp[1][A[i]] = 1;
        for (int x = 1; x <= M; ++x) {
          for (int y = 1; y <= N; ) {
            if (spe[x][y]) {
              const Mint f0 = dp[x][y];
              const Mint f1 = dp[x][y + 1];
              dp[x][y    ] = (f0 + f1 * q) * cycle;
              dp[x][y + 1] = (f1 + f0 * q) * cycle;
              dp[x][y + 2] += dp[x][y + 1];
              y += 2;
            } else {
              dp[x][y + 1] += dp[x][y];
              y += 1;
            }
          }
          for (int y = 1; y <= N; ++y) {
            dp[x + 1][y] += dp[x][y];
          }
        }
        for (int j = 0; j < L; ++j) {
          a[i][j] += dp[M][B[j]];
        }
// if(M<=3){cerr<<"q = "<<q<<", i = "<<i<<", dp = "<<endl;for(int x=1;x<=M;++x)pv(dp[x]+1,dp[x]+N+1);}
      }
// cerr<<"q = "<<q<<": a = "<<a<<", det(a) = "<<det(a)<<endl;
      fs[q - 2] = Mint(1 - q * q).pow(K) * det(a);
    }
// cerr<<"fs = "<<fs<<endl;
    
    // q = 1
    const Mint ans = interpolateIota(fs, 1 - 2);
    printf("%u\n", ans.x);
  }
  return 0;
}