// ---------- begin scannner ----------
#[allow(dead_code)]
mod scanner {
    use std::str::FromStr;
    pub struct Scanner<'a> {
        it: std::str::SplitWhitespace<'a>,
    }
    impl<'a> Scanner<'a> {
        pub fn new(s: &'a String) -> Scanner<'a> {
            Scanner {
                it: s.split_whitespace(),
            }
        }
        pub fn next<T: FromStr>(&mut self) -> T {
            self.it.next().unwrap().parse::<T>().ok().unwrap()
        }
        pub fn next_bytes(&mut self) -> Vec<u8> {
            self.it.next().unwrap().bytes().collect()
        }
        pub fn next_chars(&mut self) -> Vec<char> {
            self.it.next().unwrap().chars().collect()
        }
        pub fn next_vec<T: FromStr>(&mut self, len: usize) -> Vec<T> {
            (0..len).map(|_| self.next()).collect()
        }
    }
}
// ---------- end scannner ----------

use std::io::Write;

fn main() {
    use std::io::Read;
    let mut s = String::new();
    std::io::stdin().read_to_string(&mut s).unwrap();
    let mut sc = scanner::Scanner::new(&s);
    let out = std::io::stdout();
    let mut out = std::io::BufWriter::new(out.lock());
    run(&mut sc, &mut out);
}

fn run<W: Write>(sc: &mut scanner::Scanner, out: &mut std::io::BufWriter<W>) {
    let n: usize = sc.next();
    let m: usize = sc.next();
    let mut cond = vec![];
    for _ in 0..m {
        let a: usize = sc.next();
        let mut b = 0u64;
        for _ in 0..a {
            let k = sc.next::<usize>() - 1;
            b |= 1 << k;
        }
        let y: u32 = sc.next();
        cond.push((b, y));
    }
    let mut base: Vec<(u64, u32)> = vec![];
    for &(mut b, mut y) in cond.iter() {
        for &(p, q) in base.iter() {
            if b > (b ^ p) {
                b ^= p;
                y ^= q;
            }
        }
        if b > 0 {
            base.push((b, y));
        } else if y > 0 {
            println!("-1");
            return;
        }
    }
    base.sort();
    let mut ans = vec![0; n];
    for i in 0..base.len() {
        let (b, y) = base[i];
        for (j, base) in base.iter_mut().enumerate() {
            if i != j && base.0 > b ^ base.0 {
                base.0 ^= b;
                base.1 ^= y;
            }
        }
        assert!(b.count_ones() == 1);
        let k = 64 - b.leading_zeros() as usize;
        ans[k - 1] = y;
    }
    for a in ans {
        writeln!(out, "{}", a).ok();
    }
}