#include <bits/stdc++.h>
using namespace std;
int frec[300005];
int fr[1005][1005],din[1005][1005][21],k,t,z,n,m;
struct wow
{
int x,y;
} v[105];
vector <int> prime;
bool c[300005];
long long j,i,lim;
long long ridput (long long a,long long b)
{
if (b==0)
{
return 1;
}
long long rez=ridput(a,b/2);
if (b%2==0)
{
return (rez*rez)%z;
}
return ((rez*rez)%z*a)%z;
}
void adauga(int n,int val)
{
int j;
for (j=0; j<(int)prime.size(); j++)
{
long long p=prime[j];
while (p<=n)
{
frec[prime[j]]+=(n/p)*val;
p=p*prime[j];
}
}
}
long long combinari(int k,int n)
{
int j;
for (j=0; j<(int)prime.size(); j++)
{
frec[prime[j]]=0;
}
adauga(n,1);
adauga(k,-1);
adauga(n-k,-1);
long long p=1;
for (j=0; j<(int)prime.size(); j++)
{
p=(p*ridput(prime[j],frec[prime[j]]))%z;
}
return p;
}
bool dif (int x,int y,int x2,int y2)
{
if (x!=x2||y!=y2)
{
return 1;
}
return 0;
}
bool nimic(int x,int y,int x2,int y2)
{
for (int i=1; i<=k; i++)
{
if (dif(v[i].x,v[i].y,x,y)==1&&dif(v[i].x,v[i].y,x2,y2)==1)
{
if (x<=v[i].x&&v[i].x<=x2&&y<=v[i].y&&v[i].y<=y2)
{
return 0;
}
}
}
return 1;
}
long long nr(int x,int y,int x2,int y2)
{
if (x>x2||y>y2)
{
swap(x,x2);
swap(y,y2);
}
long long inc=combinari(x2-x,x2-x+y2-y);
if (nimic(x,y,x2,y2)==1)
{
return combinari(x2-x,x2-x+y2-y);
}
for (i=1;i<=k;i++)
{
if (dif(v[i].x,v[i].y,x,y)==1&&dif(v[i].x,v[i].y,x2,y2)==1)
{
if (x<=v[i].x&&v[i].x<=x2&&y<=v[i].y&&v[i].y<=y2)
{
if (nimic(x,y,v[i].x,v[i].y))
{
inc=(inc-(nr(x,y,v[i].x,v[i].y)*combinari(x2-v[i].x,x2-v[i].x+y2-v[i].y))%z+z)%z;
}
}
}
}
return inc;
}
long long brut()
{
int i,j;
for (i=1; i<=k; i++)
{
fr[v[i].x][v[i].y]=1;
}
din[1][1][0]=1;
for (i=1; i<=n; i++)
{
for (j=1; j<=m; j++)
{
if (i!=1||j!=1)
{
for (int r=fr[i][j]; r<=k; r++)
{
din[i][j][r]=(din[i][j][r]+din[i-1][j][r-fr[i][j]]+din[i][j-1][r-fr[i][j]])%z;
}
}
}
}
long long sum=0;
for (int r=0; r<=t; r++)
{
sum=(sum+din[n][m][r])%z;
}
return sum;
}
int main()
{
ios_base :: sync_with_stdio(false);
cin.tie(0);
#ifdef HOME
ifstream cin("turtle.in");
ofstream cout("turtle.out");
#endif // HOME
cin>>n>>m>>k>>t>>z;
n++;
m++;
lim=300000;
c[0]=c[1]=1;
for (i=2; i<=lim; i++)
{
if (c[i]==0)
{
prime.push_back(i);
for (j=i*i; j<=lim; j+=i)
{
c[j]=1;
}
}
}
for (i=1; i<=k; i++)
{
cin>>v[i].x>>v[i].y;
v[i].x++;
v[i].y++;
}
// cout<<brut()<<'\n';
lim=(1<<k);
long long sum=nr(1,1,n,m);
for (i=1;i<lim;i++)
{
vector <pair <int,int> > sol;
for (j=0;j<k;j++)
{
if (i&(1<<j))
{
sol.push_back({v[i].x,v[i].y});
}
}
int ok=1;
sort (sol.begin(),sol.end());
for (j=1;j<sol.size();j++)
{
if (sol[j-1].second>sol[j].second)
{
ok=0;
break;
}
}
if (sol.size()>t)
{
ok=0;
}
if (ok==0)
{
continue;
}
long long p=nr(1,1,sol[1].first,sol[1].second);
for (j=1;j<sol.size();j++)
{
p=(p*nr(sol[j-1].first,sol[j-1].second,sol[j].first,sol[j].second))%z;
}
int ult=(int)sol.size()-1;
p=(p*nr(sol[ult].first,sol[ult].second,n,m))%z;
sum=(sum+p)%z;
}
cout<<sum;
return 0;
}
