mail B cf

#include <bits/stdc++.h>
#define uns unsigned
#define ll long long
#define newline '\n'
using namespace std;
///**************************contest setup

inline void solve()
{
    string s, t;
    cin >> s >> t;

    if (s.size() > t.size())
    {
        cout << "NO" << newline;
        return;
    }
    if (s == t)
    {
        cout << "YES" << newline;
        return;
    }

    vector < pair <char, int> > gs, gt;
    gs.push_back(make_pair(s[0], 1));
    for (int i = 1; s[i]; i++)
        if (gs.back().first == s[i])
        {
            gs.back().second++;
        }
        else
        {
            gs.push_back(make_pair(s[i], 1));
        }

    gt.push_back(make_pair(t[0], 1));
    for (int i = 1; t[i]; i++)
        if (gt.back().first == t[i])
        {
            gt.back().second++;
        }
        else
        {
            gt.push_back(make_pair(t[i], 1));
        }

        if (s.size() > t.size())
        {
            cout << "NO" << newline;
            return;
        }//*/

        //cout << (gs.size() == gt.size());

    for (int i = 0; i < max(gs.size(), gt.size()); i++)
        if (gs[i].first != gt[i].first or gs[i].second > gt[i].second)
        {
            cout << "NO" << newline;
            return;
        }
        cout << "YES" << newline;
}

int main()
{
    int n;
    cin >> n;
    while (n--)
        solve();
    return EXIT_SUCCESS;
}