Video prompt: A hand pours milk from a stainless steel milk jug into a cup of coffee on a table, with a blurred kitchen background.
Defect: Temporal Problem (if water is spilled then no water in cup in later frames)
Explanation: The teapot exhibits a metallic sheen but also reflects the appearance of milk inside, making the material difficult to discern. Additionally, as milk is poured into a cup, the liquid level inside the teapot does not decrease (or decreases minimally), which is unrealistic.