H,W = map(int, input().split())
MAP = []
for _ in range(H):
    MAP.append(list(input()))
M = int(input())
TN = [list(map(int, input().split())) for _ in range(M)]
R = [0]
C = [0]
for t,n in TN:
    if t==1 and n!=H:
        R.append(n)
    if t==2 and n!=W:
        C.append(n)
R.sort()
C.sort()
RS = set(R)
CS = set(C)
for i in range(H):
    for j in range(W):
        if (i+j)%2==1:
            if MAP[i][j]=='.':
                MAP[i][j]='#'
            else:
                MAP[i][j]='.'
for i in range(H):
    for j in range(W-1):
        if MAP[i][j]!=MAP[i][j+1] and not j+1 in CS:
            print('No')
            exit()
for i in range(H-1):
    for j in range(W):
        if MAP[i][j]!=MAP[i+1][j] and not i+1 in RS:
            print('No')
            exit()
MAP2 = []
for r in R:
    L = []
    for c in C:
        L.append(MAP[r][c])
    MAP2.append(L)
H2 = len(MAP2)
W2 = len(MAP2[0])
for i in range(H2):
    if MAP2[i][0]=='#':
        for j in range(W2):
            if MAP2[i][j]=='.':
                MAP2[i][j]='#'
            else:
                MAP2[i][j]='.'
for i in range(W2):
    if MAP2[0][i]=='#':
        for j in range(H2):
            if MAP2[j][i]=='.':
                MAP2[j][i]='#'
            else:
                MAP2[j][i]='.'
for i in range(H2):
    for j in range(W2):
        if MAP2[i][j]!=MAP2[0][0]:
            print('No')
            exit()
print('Yes')