asass

def cin():
    return list(map(int, input().split()))


ans = True

t = int(input())
n = int(input())

cnt = [0 for x in range(100000)]

d = cin()
for x in range(t):
    r = cin()

    s = sum(r)
    bar = []
    for i in range(s):
        tmp = cin()

        if len(bar) != 0:
            # ToDo: add formula
            pass

        for j in tmp:
            if j > s:
                ans = False
                break

        for j in tmp:
            cnt[j] += 1

            if cnt[j] > 1:
                ans = False
                break

        bar = tmp

    if not ans:
        print('No')
        ans = True
        continue

    for j in range(1, s + 1):
        if cnt[j] != 1:
            ans = False
            break

    if not ans:
        print('No')
        ans = True
        continue

    print("Yes")

    cnt = [0 for x in range(100000)]