#include <bits/stdc++.h>
#pragma GCC optimize("Ofast,unroll-loops")
#pragma GCC target("avx,avx2,fma")
using namespace std;
const long long mod1 = 998244353;
const long long mod = 1e9 + 7;
long long mod_mul(long long a, long long b) {
  a = a % mod;
  b = b % mod;
  return (((a * b) % mod) + mod) % mod;
}
long long inv(long long i) {
  if (i == 1) return 1;
  return (mod - ((mod / i) * inv(mod % i)) % mod) % mod;
}
long long gcd(long long a, long long b) {
  if (b == 0) return a;
  return gcd(b, a % b);
}
long long pwr(long long a, long long b) {
  a %= mod;
  long long res = 1;
  while (b > 0) {
    if (b & 1) res = res * a % mod;
    a = a * a % mod;
    b >>= 1;
  }
  return res;
}
long long findMinNumber(long long n) {
  long long count = 0, ans = 1;
  while (n % 2 == 0) {
    count++;
    n /= 2;
  }
  if (count % 2) ans *= 2;
  for (int i = 3; i <= sqrt(n); i += 2) {
    count = 0;
    while (n % i == 0) {
      count++;
      n /= i;
    }
    if (count % 2) ans *= i;
  }
  if (n > 2) ans *= n;
  return ans;
}
long long binarySearch(long long arr[], long long l, long long r, long long x) {
  if (r >= l) {
    long long mid = l + (r - l) / 2;
    if (arr[mid] == x) return mid;
    if (arr[mid] > x) return binarySearch(arr, l, mid - 1, x);
    return binarySearch(arr, mid + 1, r, x);
  }
  return -1;
}
long long nCrModp(long long n, long long r, long long p) {
  if (r > n - r) r = n - r;
  long long C[r + 1];
  memset(C, 0, sizeof(C));
  C[0] = 1;
  for (long long i = 1; i <= n; i++) {
    for (long long j = min(i, r); j > 0; j--) C[j] = (C[j] + C[j - 1]) % p;
  }
  return C[r];
}
long long count_set_bit(long long n) {
  long long count = 0;
  while (n) {
    count += n & 1;
    n >>= 1;
  }
  return count;
}
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  cout.tie(NULL);
  long long t;
  cin >> t;
  while (t--) {
    string a, b;
    cin >> a >> b;
    long long n = a.length(), m = b.length();
    if (m < n)
      cout << "NO" << '\n';
    else {
      long long p = 0, res = 0, i;
      if (a[0] == b[0]) {
        for (i = 1; i < m; i++) {
          if (p != n - 1) {
            if (a[p + 1] == b[i]) {
              p++;
            } else if (a[p] == b[i])
              continue;
            else {
              res = 1;
              break;
            }
          } else {
            if (a[p] == b[i])
              continue;
            else {
              res = 1;
              break;
            }
          }
        }
        if (res or p != n - 1)
          cout << "NO" << '\n';
        else
          cout << "YES" << '\n';
      } else
        cout << "NO" << '\n';
    }
  }
  return 0;
}
