#include <bits/stdc++.h>
using namespace std;
long long n, m, q, t, x, y, b, c, d;
string s1, s2;
long long a[3];
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cin >> n;
  for (int i = 0; i < n; i++) {
    cin >> s1 >> s2;
    int l1 = s1.length();
    int l2 = s2.length();
    int j = 0, k = 0;
    int ok = 1;
    int lastok = -1;
    while (j < l1 && k < l2) {
      if (s1[j] == s2[k]) {
        j++;
        k++;
        lastok++;
      } else if (k && s2[k] == s2[k - 1]) {
        int tmp = k;
        while (tmp < l2 && s2[tmp] == s2[k]) tmp++;
        if (tmp == l2) {
          ok = 0;
          break;
        }
        lastok = tmp - 1;
        k = tmp;
      } else if (lastok == k - 1) {
        ok = 0;
        break;
      }
    }
    if (j < l1) ok = 0;
    while (k < l2) {
      if (k && s2[k] != s2[k - 1]) {
        ok = 0;
        break;
      }
      k++;
    }
    cout << (ok ? "YES" : "NO") << endl;
  }
  return 0;
}
