#include <iostream>
#include <vector>
#include <cassert>

struct ReduceMap{
	std::vector<std::pair<uint64_t, uint32_t>> vec;
	ReduceMap(std::size_t n): vec(n) {}
	bool insert(uint64_t key, uint32_t value){
		if(key == 0){
			return value == 0;
		}else{
			int index = __builtin_ctzll(key);
			if(vec[index].first == 0){
				vec[index].first = key;
				vec[index].second = value;
				return true;
			}else{
				return insert(key ^ vec[index].first, value ^ vec[index].second);
			}
		}
	}
	std::vector<uint32_t> construct() const {
		std::size_t n = vec.size();
		std::vector<uint32_t> ret(n, 0);
		for(std::size_t i = n - 1;; --i){
			if(vec[i].first){
				uint32_t x = vec[i].second;
				for(std::size_t j = i + 1; j < n; ++j){
					if(vec[i].first >> j & 1){
						x ^= ret[j];
					}
				}
				ret[i] = x;
			}
			if(i == 0){
				return std::move(ret);
			}
		}
	}
};

int main(){
	std::size_t n, m;
	std::cin >> n >> m;
	assert(1 <= n && n <= 50);
	assert(1 <= m && m <= 100000);
	ReduceMap map(n);
	for(std::size_t i = 0; i < m; ++i){
		std::size_t a;
		std::cin >> a;
		uint64_t visited = 0;
		for(std::size_t j = 0; j < a; ++j){
			int b;
			std::cin >> b;
			--b;
			visited |= 1ull << b;
		}
		uint32_t y;
		std::cin >> y;
		if(!map.insert(visited, y)){
			std::cout << "-1" << std::endl;
			return 0;
		}
	}
	auto ans = map.construct();
	for(uint32_t i : ans){
		std::cout << i << std::endl;
	}
}