h, w = map(int, input().split())
def f(s):
    if s == "#": return 0
    else: return 1

A = [list(map(f, input())) for _ in range(h)]
row = [0, h]
col = [0, w]
m = int(input())
for _ in range(m):
    t, n = map(int, input().split())
    if t == 1:
        row.append(n)
    else:
        col.append(n)
row.sort()
col.sort()
R = []
C = []
for i in range(len(row) - 1):
    R.append((row[i], row[i + 1]))
    
for i in range(len(col) - 1):
    C.append((col[i], col[i + 1]))
    
if A[0][0] == 1:
    A = [[A[i][j] ^ 1 for j in range(w)] for i in range(h)]

row_ = [False] * h
for i1, i2 in R:
    se = set()
    for i in range(i1, i2):
        se.add(A[i][0] != i & 1)
    if len(se) == 2:
        print("No")
        exit()
    for s in se:
        break
    if s:
        for i in range(i1, i2):
            row_[i] = True

col_ = [False] * w

for i1, i2 in C:
    se = set()
    for i in range(i1, i2):
        se.add(A[0][i] != i & 1)
    if len(se) == 2:
        print("No")
        exit()
    for s in se:
        break
    if s:
        for i in range(i1, i2):
            col_[i] = True

for i in range(h):
    for j in range(w):
        tmp = A[i][j] ^ row_[i] ^ col_[j]
        if tmp != (i + j) & 1:
            print("No")
            exit()
print("Yes")