##top=[]
##bottom=[]    
for i in range(int(input())):
##    top.append(input())
##    bottom.append(input())
    top = input()
    bottom=input()

###for i in range(len(top)):
##    a = top[i][0]+bottom[i][0]
##    b = top[i][1]+bottom[i][1]
##    c = top[i][2]+bottom[i][2]
    
    a = top[0]+bottom[0]
    b = top[1]+bottom[1]
    c = top[2]+bottom[2]
    li=[a,b,c]

    b_ind = [index for index, value in enumerate(li) if 'b' in value]
    o_ind = [index for index, value in enumerate(li) if 'o' in value]
    
    
    if len(b_ind)<=1:
        print("no")
        continue
    if len(o_ind) ==0:
        print("no")
        continue
    else:
        if b_ind==o_ind and len(b_ind)!=3:
            print("no")
            continue
        else:
            print("yes")