Task: Question Answering
Input (English): Background Paragraph: When light passes through Earth's atmosphere, photons interact with it through scattering. If the light does not interact with the atmosphere, it is called direct radiation and is what you see if you were to look directly at the Sun. Indirect radiation is light that has been scattered in the atmosphere. For example, on an overcast day when you cannot see your shadow there is no direct radiation reaching you, it has all been scattered. As another example, due to a phenomenon called Rayleigh scattering, shorter (blue) wavelengths scatter more easily than longer (red) wavelengths. This is why the sky looks blue; you are seeing scattered blue light. This is also why sunsets are red. Because the Sun is close to the horizon, the Sun's rays pass through more atmosphere than normal to reach your eye. Much of the blue light has been scattered out, leaving the red light in a sunset. 
Story: Michael lives near a cliff overlooking the sea. Because of this he has an amazing view of the sunset. One day Michael decides to head out to the cliff and notices the sky looks much more red than normal. He also remembers that on the previous day he couldn't see his shadow at all. 
Question: Given Michael goes out one day and notices he can't see his shadow, which is the most likely weather, clear skies or overcast?
Output (English): overcast.