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.

Ex Input:
Question: A flu vaccine was administered to residents in a large city and the vaccine was effective in lowering the risk of flu among the residents. This means that the lower risk of disease resulted in a 
 Answer: lower death rate.

Ex Output:
With better food and less chance of disease, the death rate fell.


Ex Input:
Question: Mars has _____ effect on the tides than the Moon. 
 Answer: less

Ex Output:
The Moon has a greater effect on the tides because, although it is much smaller than the Sun, it is much closer.


Ex Input:
Question: Ian is looking at quarks and sees that they are not attracted to each other. Ian knows that the distance between the quarks is currently 
 Answer: close

Ex Output:

Gluons make quarks attract each other more strongly the farther apart the quarks get.