#include <bits/stdc++.h>

using namespace std;
ifstream fin("matrice5.in");
ofstream fout("matrice5.out");
long long fact[21];
typedef long long ll;
ll n,m,p,k,mod=1e4+7,t;
ll pw(ll a,ll b)
{
    ll p=1;
    while(b)
    {
        if(b%2==1)
            p=(p*a)%mod;
        a=(a*a)%mod;
        b/=2;
    }
    return p;
}
int main()
{
    fin>>t;
    for(int i=1;i<=t;i++)
    {
        fin>>n>>m>>p>>k;
        ll x=(k*p)%mod;
        x=pw(x,(m-1)*(n-1));
        p=pw(p,m+n-1);
        fout<<(x*p)%mod<<'\n';
    }
    return 0;
}