fn read() -> (Vec<u32>, Vec<Vec<usize>>) {
    let mut s = String::new();
    use std::io::Read;
    std::io::stdin().read_to_string(&mut s).unwrap();
    let mut it = s.trim().split_whitespace();
    let mut next = || it.next().unwrap().parse::<usize>().unwrap();
    let n = next();
    let q = next();
    let a = (0..n).map(|_| next() as u32).collect::<Vec<_>>();
    let ask = (0..q)
        .map(|_| {
            let m = next();
            (0..m).map(|_| next()).collect::<Vec<_>>()
        })
        .collect::<Vec<_>>();
    (a, ask)
}

fn add(base: &mut Vec<u32>, mut v: u32) {
    for b in base.iter() {
        v = v.min(v ^ *b);
    }
    if v > 0 {
        base.push(v);
    }
}

fn main() {
    let (a, ask) = read();
    let n = a.len();
    let q = ask.len();
    let mut query = vec![];
    for (i, mut ask) in ask.into_iter().enumerate() {
        ask.insert(0, 0);
        ask.push(a.len());
        for a in ask.windows(2) {
            let (l, r) = (a[0], a[1]);
            query.push((l, r, i));
        }
    }
    const MOD: u64 = 1_000_000_007;
    let mut pow = vec![1; n + 1];
    for i in 1..=n {
        pow[i] = 2 * pow[i - 1] % MOD;
    }
    let mut ans = vec![1; q];
    let mut memo = vec![vec![]; n];
    let mut dfs = vec![(0, n, query)];
    while let Some((l, r, ask)) = dfs.pop() {
        if l + 1 == r {
            if a[l] == 0 {
                for (_, _, k) in ask {
                    ans[k] = 2 * ans[k] % MOD;
                }
            }
            continue;
        }
        let m = (l + r) / 2;
        let mut x = vec![];
        let mut y = vec![];
        let mut c = vec![];
        for p in ask {
            if p.1 <= m {
                x.push(p);
            } else if m <= p.0 {
                y.push(p);
            } else {
                c.push(p);
            }
        }
        dfs.push((l, m, x));
        dfs.push((m, r, y));
        c.sort_by_key(|p| p.0);
        let mut base = vec![];
        for i in m..r {
            add(&mut base, a[i]);
            memo[i] = base.clone();
        }
        let mut base = vec![];
        for i in (l..m).rev() {
            add(&mut base, a[i]);
            while c.last().map_or(false, |p| p.0 == i) {
                let (_, r, k) = c.pop().unwrap();
                let mut base = base.clone();
                for v in memo[r - 1].iter() {
                    add(&mut base, *v);
                }
                ans[k] = ans[k] * pow[r - i - base.len()] % MOD;
            }
        }
        memo[m..r].iter_mut().for_each(|p| p.clear());
    }
    use std::io::Write;
    let out = std::io::stdout();
    let mut out = std::io::BufWriter::new(out.lock());
    for a in ans {
        writeln!(out, "{}", a).ok();
    }
}