T = int(input())
a = [0] * T
b = [0] * T
c = [0] * T
d = [0] * T
for i in range(T):
    a[i], b[i], c[i], d[i] = map(int, input().split())
for i in range(T):
    if a[i] != 0:
        if b[i]**2 - 3*a[i]*c[i] > 0:
            print("Yes")
        else: print("No")
    else: print("No")