1
2 2
1 1
1 2
 1
1 3
3
1 2 3
 1
1 1
1000
1000
 1
2 2
2 2
2 2
 5
4 5
10 8 6 4
1 2 3 4 5
1 1
3
3
1 1
3
2
5 3
1000 2 2 2 3
3 1 5
5 5
1 2 3 4 5
1 2 3 4 5
 1
4 4
1 1 1 1
1 2 3 4
 1
2 3
1 1
1 2 3

YES
1 1
 YES
1 3
 YES
1 1000
 YES
1 2
 YES
1 4
YES
1 3
NO
YES
1 3
YES
1 1
 YES
1 1
 YES
1 1

#common subsequence
def commonsubsequence(l1,l2,l3):
    c = list()
    for i in  l2:
        if i in l3:
            c.append(i)
            break
    if len(c) == 0:
        print("No ")
    else:
        print("Yes ")
        print(len(c),end=" ")
        for i in c:
            print(i,end = " ")
        print()
 
 
t = int(input())
while t>0 :
    l1 = list(map(int,input().split()))
    l2 = list(map(int,input().split()))
    l3 = list(map(int,input().split()))
    commonsubsequence(l1,l2,l3)
    t-=1