def solve():
    x1, y1, x2, y2, X1, Y1, X2, Y2 = map(int, input().split())
    if x1 == X1 and y1 == Y1 and x2 == X2 and y2 == Y2:
        return True

    dx1 = x1 - x2
    dy1 = y1 - y2
    dx2 = X1 - X2
    dy2 = Y1 - Y2

    if dx1 * dy2 != dx2 * dy1:
        return False

    if dx1 * dx2 < 0 or dy1 * dy2 < 0:
        return False

    db = (x1 - x2) ** 2 + (y1 - y2) ** 2
    da = (X1 - X2) ** 2 + (Y1 - Y2) ** 2
    return db > da


for _ in range(int(input())):
    if solve():
        print("Yes")
    else:
        print("No")