#![allow(unused_parens)]
#![allow(unused_imports)]
#![allow(non_upper_case_globals)]
#![allow(non_snake_case)]
#![allow(unused_mut)]
#![allow(unused_variables)]
#![allow(dead_code)]

type Vec2<T> = Vec<Vec<T>>;
type Vec3<T> = Vec<Vec<Vec<T>>>;

#[allow(unused_macros)]
macro_rules! invec {
    ( $ t : ty ) => {{
        let mut s = String::new();
        match std::io::stdin().read_line(&mut s) {
            Ok(0) => Vec::<$t>::new(),
            Ok(n) => s
                .trim()
                .split_whitespace()
                .map(|s| s.parse::<$t>().unwrap())
                .collect::<Vec<$t>>(),
            Err(_) => Vec::<$t>::new(),
        }
    }};
}

#[allow(unused_macros)]
macro_rules! get {
      ($t:ty) => {
          {
              let mut line: String = String::new();
              std::io::stdin().read_line(&mut line).unwrap();
              line.trim().parse::<$t>().unwrap()
          }
      };
      ($($t:ty),*) => {
          {
              let mut line: String = String::new();
              std::io::stdin().read_line(&mut line).unwrap();
              let mut iter = line.split_whitespace();
              (
                  $(iter.next().unwrap().parse::<$t>().unwrap(),)*
              )
          }
      };
      ($t:ty; $n:expr) => {
          (0..$n).map(|_|
              get!($t)
          ).collect::<Vec<_>>()
      };
      ($($t:ty),*; $n:expr) => {
          (0..$n).map(|_|
              get!($($t),*)
          ).collect::<Vec<_>>()
      };
      ($t:ty ;;) => {
          {
              let mut line: String = String::new();
              std::io::stdin().read_line(&mut line).unwrap();
              line.split_whitespace()
                  .map(|t| t.parse::<$t>().unwrap())
                  .collect::<Vec<_>>()
          }
      };
      ($t:ty ;; $n:expr) => {
          (0..$n).map(|_| get!($t ;;)).collect::<Vec<_>>()
      };
}

#[allow(unused_macros)]
macro_rules! input {
    (source = $s:expr, $($r:tt)*) => {
        let mut iter = $s.split_whitespace();
        input_inner!{iter, $($r)*}
    };
    ($($r:tt)*) => {
        let mut s = {
            use std::io::Read;
            let mut s = String::new();
            std::io::stdin().read_to_string(&mut s).unwrap();
            s
        };
        let mut iter = s.split_whitespace();
        input_inner!{iter, $($r)*}
    };
}

macro_rules! input_inner {
    ($iter:expr) => {};
    ($iter:expr, ) => {};

    ($iter:expr, $var:ident : $t:tt $($r:tt)*) => {
        let $var = read_value!($iter, $t);
        input_inner!{$iter $($r)*}
    };
    ($iter:expr, mut $var:ident : $t:tt $($r:tt)*) => {
        let mut $var = read_value!($iter, $t);
        input_inner!{$iter $($r)*}
    };
}

#[allow(unused_macros)]
macro_rules! read_value {
    ($iter:expr, ( $($t:tt),* )) => {
        ( $(read_value!($iter, $t)),* )
    };

    ($iter:expr, [ $t:tt ; $len:expr ]) => {
        (0..$len).map(|_| read_value!($iter, $t)).collect::<Vec<_>>()
    };

    ($next:expr, [$t:tt]) => {
        {
            let len = read_value!($next, usize);
            (0..len).map(|_| read_value!($next, $t)).collect::<Vec<_>>()
        }
    };
    ($iter:expr, chars) => {
        read_value!($iter, String).chars().collect::<Vec<char>>()
    };

    ($iter:expr, usize1) => {
        read_value!($iter, usize) - 1
    };

    ($iter:expr, $t:ty) => {
        $iter.next().unwrap().parse::<$t>().expect("Parse error")
    };
}

#[allow(unused_macros)]
#[cfg(debug_assertions)]
macro_rules! mydbg {
    //($arg:expr) => (dbg!($arg))
    //($arg:expr) => (println!("{:?}",$arg));
      ($($a:expr),*) => {
          eprintln!(concat!($(stringify!($a), " = {:?}, "),*), $($a),*);
      }
}
#[cfg(not(debug_assertions))]
macro_rules! mydbg {
    ($($arg:expr),*) => {};
}

macro_rules! echo {
    ($($a:expr),*) => {
          $(println!("{}",$a))*
      }
}

use std::cmp::*;
use std::collections::*;
use std::ops::{Add, Div, Mul, Rem, Sub};

trait SafeRangeContain {
    fn safe_contains(&self, x: i64) -> bool;
}

impl SafeRangeContain for std::ops::Range<usize> {
    fn safe_contains(&self, x: i64) -> bool {
        if x < 0 {
            return false;
        }
        return self.contains(&(x as usize));
    }
}

#[allow(dead_code)]
static INF_I64: i64 = i64::max_value() / 2;
#[allow(dead_code)]
static INF_I32: i32 = i32::max_value() / 2;
#[allow(dead_code)]
static INF_USIZE: usize = usize::max_value() / 2;
#[allow(dead_code)]
static M_O_D: usize = 1000000007;
#[allow(dead_code)]
static PAI: f64 = 3.1415926535897932;

trait IteratorExt: Iterator {
    fn toVec(self) -> Vec<Self::Item>;
}

impl<T: Iterator> IteratorExt for T {
    fn toVec(self) -> Vec<Self::Item> {
        self.collect()
    }
}

trait CharExt {
    fn toNum(&self) -> usize;
    fn toAlphabetIndex(&self) -> usize;
    fn toNumIndex(&self) -> usize;
}
impl CharExt for char {
    fn toNum(&self) -> usize {
        return *self as usize;
    }
    fn toAlphabetIndex(&self) -> usize {
        return self.toNum() - 'a' as usize;
    }
    fn toNumIndex(&self) -> usize {
        return self.toNum() - '0' as usize;
    }
}

trait VectorExt {
    fn joinToString(&self, s: &str) -> String;
}
impl<T: ToString> VectorExt for Vec<T> {
    fn joinToString(&self, s: &str) -> String {
        return self
            .iter()
            .map(|x| x.to_string())
            .collect::<Vec<_>>()
            .join(s);
    }
}

trait StringExt {
    fn get_reverse(&self) -> String;
}
impl StringExt for String {
    fn get_reverse(&self) -> String {
        self.chars().rev().collect::<String>()
    }
}

trait UsizeExt {
    fn pow(&self, n: usize) -> usize;
}
impl UsizeExt for usize {
    fn pow(&self, n: usize) -> usize {
        return ((*self as u64).pow(n as u32)) as usize;
    }
}

fn main() {
    solve();
}

fn solve() {
    let mut ans: u64 = 0;
    let (H, W) = get!(usize, usize);
    let mut map = vec![vec![0; W]; H];
    for i in 0..H {
        let s = get!(String)
            .chars()
            .map(|x| if x == '.' { 0 } else { 1 })
            .toVec();
        for j in 0..W {
            map[i][j] = s[j];
            if (i + j) % 2 == 1 {
                map[i][j] ^= 1;
            }
        }
    }
    let M = get!(usize);
    let mut a = BTreeSet::new();
    let mut b = BTreeSet::new();
    for _ in 0..M {
        let (t, l) = get!(usize, usize);
        if t == 1 {
            a.insert(l);
        } else {
            b.insert(l);
        }
    }
    let mut A = a.clone();
    let mut B = b.clone();
    A.insert(0);
    B.insert(0);
    A.insert(H);
    B.insert(W);

    let A = A.iter().map(|&x| x).collect::<Vec<_>>();
    let B = B.iter().map(|&x| x).collect::<Vec<_>>();
    mydbg!(A);
    mydbg!(B);
    let mut y = vec![vec![0; W]; H];
    let mut x = vec![vec![0; W]; H];

    for k in 1..A.len() {
        let l = A[k - 1];
        let r = A[k];

        for j in 0..W {
            for i in l..r {
                x[i][j] = k - 1;
            }
        }
    }
    for k in 1..B.len() {
        let l = B[k - 1];
        let r = B[k];

        for i in 0..H {
            for j in l..r {
                y[i][j] = k - 1;
            }
        }
    }

    let mut map2 = vec![vec![-1; B.len() - 1]; A.len() - 1];
    for i in 0..H {
        for j in 0..W {
            if map2[x[i][j]][y[i][j]] != -1 && map2[x[i][j]][y[i][j]] != map[i][j] {
                echo!("No");
                return;
            }
            map2[x[i][j]][y[i][j]] = map[i][j];
        }
    }
    mydbg!(map2);
    for i in 0..a.len() {
        if map2[i][0] == 1 {
            for j in 0..map2[0].len() {
                map2[i][j] ^= 1;
            }
        }
    }
    for j in 0..map2[0].len() {
        if map2[0][j] == 1 {
            for i in 0..a.len() {
                map2[i][j] ^= 1;
            }
        }
    }

    let mut sum = 0;
    for i in 0..map2.len() {
        for j in 0..map2[0].len() {
            sum += map2[i][j];
        }
    }
    if sum == 0 {
        echo!("Yes");
    } else {
        echo!("No");
    }
}