#include <iostream>
#include <fstream>
#include <cstring>
#include <stack>
#include <bits/stdc++.h>
#include <vector>
#include <bitset>
#define rep(a,b,c) for(a = b; a <= c; ++a)
#define pob pop_back
#define pof pop_front
#define pub push_back
#define ll long long int
#define nmax 1001
#define mod 998244353
using namespace std;
ifstream f("tabel.in");
ofstream g("tabel.out");



int main()
{
  int n,nr2, nr, i, j;
  bool ok;
  char s1[1000000], s2[1000000];
  cin >> n;
  cin.get();
  while(n--)
  {
    cin.getline(s1, 1000001);
    cin.getline(s2, 1000001);
    nr = strlen(s1);
    nr2 = strlen(s2);
    if(nr2 < nr)
      cout << "NO"<<'\n';
    else
    {
    i = 0;
    ok = 1;
    for(j = 0; j < nr2 && ok; ++j)
      if(s1[i] == s2[j])
        {
          while(s2[j] == s1[i])
            ++j;
          j--;
          i++;
//          cout << s2[j] <<"\n";
        }
       else
        {
        if(s1[i] != s2[j - 1])
          ok = 0;
        }
    if(!ok)
      cout << "NO" <<'\n';
    else
      cout << "YES" <<'\n';
    }
  }
  return 0;
}