#include <bits/stdc++.h>
#define LLI long long int
#define FOR(v, a, b) for(LLI v = (a); v < (b); ++v)
#define FORE(v, a, b) for(LLI v = (a); v <= (b); ++v)
#define REP(v, n) FOR(v, 0, n)
#define REPE(v, n) FORE(v, 0, n)
#define REV(v, a, b) for(LLI v = (a); v >= (b); --v)
#define ALL(x) (x).begin(), (x).end()
#define RALL(x) (x).rbegin(), (x).rend()
#define ITR(it, c) for(auto it = (c).begin(); it != (c).end(); ++it)
#define RITR(it, c) for(auto it = (c).rbegin(); it != (c).rend(); ++it)
#define EXIST(c,x) ((c).find(x) != (c).end())
#define fst first
#define snd second
#define popcount __builtin_popcount
#define UNIQ(v) (v).erase(unique(ALL(v)), (v).end())
#define bit(i) (1LL<<(i))

#ifdef DEBUG
#include <Mylib/Debug/debug.cpp>
#else
#define dump(...) ((void)0)
#endif

#define gcd __gcd

using namespace std;
template <class T> constexpr T lcm(T m, T n){return m/gcd(m,n)*n;}

template <typename I> void join(ostream &ost, I s, I t, string d=" "){for(auto i=s; i!=t; ++i){if(i!=s)ost<<d; ost<<*i;}ost<<endl;}
template <typename T> istream& operator>>(istream &is, vector<T> &v){for(auto &a : v) is >> a; return is;}
template <typename T> void puts_all(const T &value){std::cout << value << "\n";}
template <typename T, typename ...Args> void puts_all(const T &value, const Args&... args){std::cout << value << " ";puts_all(args...);}

template <typename T, typename U> bool chmin(T &a, const U &b){return (a>b ? a=b, true : false);}
template <typename T, typename U> bool chmax(T &a, const U &b){return (a<b ? a=b, true : false);}
template <typename T, size_t N, typename U> void fill_array(T (&a)[N], const U &v){fill((U*)a, (U*)(a+N), v);}
template <typename T> auto make_vector(int n, int m, const T &value){return vector<vector<T>>(n, vector<T>(m, value));}


struct Init{
  Init(){
    cin.tie(0);
    ios::sync_with_stdio(false);
    cout << fixed << setprecision(12);
    cerr << fixed << setprecision(12);
  }
}init;


template <std::uint32_t M> class ModInt{
public:
  std::uint64_t val;
  ModInt(): val(0){}
  ModInt(std::int64_t n){
    if(n >= M) val = n % M;
    else if(n < 0) val = n % M + M;
    else val = n;
  }
  
  inline constexpr auto operator+(const ModInt &a) const {return ModInt(val + a.val);}
  inline constexpr auto operator-(const ModInt &a) const {return ModInt(val - a.val);}
  inline constexpr auto operator*(const ModInt &a) const {return ModInt(val * a.val);}
  inline constexpr auto operator/(const ModInt &a) const {return ModInt(val * a.inv().val);}
  
  inline constexpr auto& operator=(const ModInt &a){val = a.val; return *this;}
  inline constexpr auto& operator+=(const ModInt &a){if((val += a.val) >= M) val -= M; return *this;}
  inline constexpr auto& operator-=(const ModInt &a){if(val < a.val) val += M; val -= a.val; return *this;}
  inline constexpr auto& operator*=(const ModInt &a){(val *= a.val) %= M; return *this;}
  inline constexpr auto& operator/=(const ModInt &a){(val *= a.inv().val) %= M; return *this;}

  inline constexpr bool operator==(const ModInt &a) const {return val == a.val;}
  inline constexpr bool operator!=(const ModInt &a) const {return val != a.val;}

  inline constexpr auto& operator++(){*this += 1; return *this;}
  inline constexpr auto& operator--(){*this -= 1; return *this;}

  inline constexpr auto operator++(int){auto t = *this; *this += 1; return t;}
  inline constexpr auto operator--(int){auto t = *this; *this -= 1; return t;}

  inline constexpr static auto frac(std::int64_t a, std::int64_t b){
    return ModInt(a) / ModInt(b);
  }
  
  inline constexpr static ModInt power(std::int64_t n, std::int64_t p){
    if(p < 0) return power(n, -p).inv();
    
    ModInt ret = 1, e = n;
    for(; p; e *= e, p >>= 1) if(p & 1) ret *= e;
    return ret;
  }

  inline constexpr auto power(std::int64_t p) const {return power(val, p);}
  
  inline constexpr ModInt inv() const {
    std::int64_t a = val, b = M, u = 1, v = 0;
    
    while(b){
      std::int64_t t = a/b;
      a -= t*b; std::swap(a,b);
      u -= t*v; std::swap(u,v);
    }
    u %= M;
    if(u < 0) u += M;
    
    return u;
  }
};

template <std::uint32_t M> auto operator-(const ModInt<M> &a){return ModInt<M>(-a.val);}

template <std::uint32_t M> auto operator+(std::int64_t a, const ModInt<M> &b){return ModInt<M>(a) + b;}
template <std::uint32_t M> auto operator-(std::int64_t a, const ModInt<M> &b){return ModInt<M>(a) - b;}
template <std::uint32_t M> auto operator*(std::int64_t a, const ModInt<M> &b){return ModInt<M>(a) * b;}
template <std::uint32_t M> auto operator/(std::int64_t a, const ModInt<M> &b){return ModInt<M>(a) / b;}

template <std::uint32_t M> std::istream& operator>>(std::istream &is, ModInt<M> &a){is >> a.val; return is;}
template <std::uint32_t M> std::ostream& operator<<(std::ostream &os, const ModInt<M> &a){os << a.val; return os;}


using mint = ModInt<1000000007>;


const mint div_2 = mint::frac(1, 2);

int main(){
  int N, Q; cin >> N >> Q;

  vector<int> A(N); cin >> A;

  vector<int> X(Q), Y(Q);
  REP(i,Q){
    cin >> X[i] >> Y[i];
    --X[i], --Y[i];
  }

  auto dp = make_vector<mint>(N, N, 0);

  REP(i,N){
    REP(j,N){
      if(A[i] > A[j]) dp[i][j] = 1;
    }
  }

  REP(i,Q){
    int x = X[i], y = Y[i];

    dp[x][y] = dp[y][x] = (dp[x][y] + dp[y][x]) * div_2;

    REP(j,N){
      if(j == x or j == y) continue;

      dp[j][x] = dp[j][y] = (dp[j][x] + dp[j][y]) * div_2;
      dp[x][j] = dp[y][j] = (dp[x][j] + dp[y][j]) * div_2;
    }
  }


  mint ans = 0;

  REP(i,N){
    FOR(j,i+1,N){
      ans += dp[i][j];
    }
  }

  ans *= mint::power(2, Q);

  cout << ans << endl;

  return 0;
}


Measured memory_bytes: 72832