#include<bits/stdc++.h>
using namespace std;

int main()
{
    int t;
    cin>>t;
    while(t--)
    {
        string s,s1;
        cin>>s;
        cin>>s1;
        int i,j;
        if(s.size()>s1.size())
            cout<<"NO"<<endl;
        else
        {

        bool flag=true;
        for(i=0,j=0; i<s1.size(); i++)
        {
            if(s1[i]!=s[j] && s1[i]!=s[j-1])
            {
                flag=false;
            }
            else if(s1[i]!=s[j] && s1[i]==s[j-1])
            {

            }
            else j++;

        }
        if(flag)
            cout<<"YES"<<endl;
        else
            cout<<"NO"<<endl;
        }
    }
    return 0;
}