#include
using namespace std;
int check(char exp1[],char expp2[]);
int main()
{
int t;
cin>>t;
int k=0;
int a[k]={0};
while(t-->0)
{
char exp1[3],expp2[3];
cin>>exp1;
cin>>expp2;
int countb=0,counto=0,i,j;
int f=check(exp1,expp2);
for(i=0;i<3;i++)
{
if(exp1[i]=='b')
countb++;
else if(exp1[i]=='o')
counto++;
else
continue;
}
for(i=0;i<3;i++)
{
if(expp2[i]=='b')
countb++;
else if(expp2[i]=='o')
counto++;
else
continue;
}
if(f==1&&countb>=2&&counto>=1)
a[k++]=1;
else
a[k++]=0;
// cout<<"t="<<t<<endl;
}
for(int i=0;i<k;i++)
{
if(a[i]==1)
{
cout<<"yes"<<endl;
}
else
{
cout<<"no"<<endl;
}
}
}
int check(char exp1[],char expp2[])
{
int i,j;
for(i=0;i<3;i++)
{
if((exp1[i]==‘b’||exp1[i]==‘o’)||(expp2[i]==‘b’||expp2[i]==‘o’))
continue;
else
break;
}
//cout<<“i=”<<i<<endl;
if(i==3)
return 1;
else
return 0;
}