premise: A young man wearing goggles is putting some liquid in a beaker while a young girl wearing blue gloves looks down while holding a pen. hypothesis: A science teacher demonstrates how to mix the liquid as his young student takes notes.
neutral: The man could have been a student as well instead of being the science teacher who's demonstrating. The young girl could have simply been holding the pen without any intention of taking notes.|neutral: There is no evidence in the first sentence the young man is the science teacher or that the young student takes notes.|neutral: A person can help someone with science without being a science teacher.