def get(l,r):
    return (h[r]-h[l-1]*p[r-l+1])%Q

N = 100010
p = [0]*N
h = [0]*N
P = 131
Q = 2**64
p[0] = 1
n,m = map(int,input().split())
string = ' '+str(input())
#注意这里不能加.split(),否则输入进来的结果是 ['UJn6IUJn6I']
#实际我们需要的是 UJn6IUJn6I（注意前面有个空格）
print(string)
for i in range(1,n+1):#注意这里
    p[i] = (p[i-1]*P)%Q
    h[i] = (h[i-1]*P+ord(string[i]))%Q


for i in range(m):
    l1,r1,l2,r2 = map(int,input().split())
    if get(l1,r1) == get(l2, r2):
        print('Yes')
    else:
        print('No')