#include <bits/stdc++.h>

using namespace std;
const int MAXN = 200010;
const int MAXM = 1000010;
vector <int> v[MAXN], buc[MAXM], maxs;
int cnt[MAXM];
vector <pair<int, int> > srt;
bool pos[MAXN];

bool isSubset(vector<int> &a, vector<int> &b) {
    int idx = 0;
    for (int i = 0; i < b.size(); i++) {
        while (idx+1 < a.size() && a[idx] < b[i]) {
            idx++;
        }
        if (a[idx] != b[i]) return false;
    }
    return true;
}

bool cmp(int a, int b) {
    return v[a].size() > v[b].size();
}

int main() {
    ios::sync_with_stdio(false); cin.tie(0);
    int N, M; cin >> N >> M;
    for (int i = 1; i <= N; i++) {
        int k; cin >> k;
        for (int j = 1; j <= k; j++) {
            int x; cin >> x;
            v[i].push_back(x);
            buc[x].push_back(i);
            cnt[x]++;
        }
    }
    for (int i = 1; i <= N; i++) {
        sort(v[i].begin(), v[i].end());
    }
    for (int i = 1; i <= M; i++) {
        srt.push_back({cnt[i], i});
    }
    sort (srt.rbegin(), srt.rend());
    for (auto x : srt) {
        int bucidx = x.second;
        bool maximal = true;
        for (auto x : buc[bucidx]) {
            if (pos[x]) {
                maximal = false;
            }
        }
        if (maximal) {
            for (auto x : buc[bucidx]) {
                pos[x] = true;
            }
            sort(buc[bucidx].begin(), buc[bucidx].end(), cmp);
            for (int i = 1; i < buc[bucidx].size(); i++) {
                if (!isSubset(v[buc[bucidx][i-1]], v[buc[bucidx][i]])) {
                    cout << "YES\n";
                    cout << buc[bucidx][i-1] << ' ' << buc[bucidx][i] << '\n';
                    return 0;
                }
            }
        }
    }
    cout << "NO";
    return 0;
}