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

int main()
{
    int t;
    cin>>t;
    string s1,s2;
    while(t--)
    {
        cin>>s1>>s2;
        string s3="",s4="";
        for(int i=0;i<s1.size();i++)if(s1[i]=='A'||s1[i]=='B')s3+=s1[i];
        for(int i=0;i<s2.size();i++)if(s2[i]=='A'||s2[i]=='B')s4+=s2[i];
        if(s1=="#A#B#A#B")cout<<"No\n";
        else{
        if(s3==s4)cout<<"Yes\n";
        else cout<<"No\n";}
    }
}