Task: Question Answering
Input (English): Question: In a science class, the professor demonstrates refraction to the class. First, the professor shows a curved lens from a binocular, and then a flat pane of glass, demonstrating that 
 Option1: the curved lens refracts less light 
 Option2: the flat pane refracts less light. 
 Explanation: The more curved the surface of a lens is, the more it refracts the light that passes through it.
Output (English): the flat pane refracts less light.