In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.

Example Input: Question: Dean held two magnets a few inches apart, and felt them pull at each other. He didn't feel a pull from the magnets when they were 
 Answer: further
Example Output: The smaller the distance between the objects, the greater the force of magnetic attraction.

Example Input: Question: When you work out at the gym less your muscles become 
 Answer: smaller
Example Output: Muscles that are exercised are bigger and stronger than muscles that are not exercised.

Example Input: Question: Joe drives a hybrid while Jim drives a large truck. Who uses less energy when driving? 
 Answer: Joe
Example Output:
Lighter, more streamlined vehicles need less energy.