In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.

Ex Input:
Question: What is formed when a subducting plate flows under another tectonic plate? Answer: volcanic arc

Ex Output:
A volcanic arc is formed when a subducting plate flows under another tectonic plate.


Ex Input:
Question: What is the term for the horizontal displacement of a projectile from its starting point? Answer: range

Ex Output:
Range is the term for the horizontal displacement of a projectile from its starting point.


Ex Input:
Question: What is used for cooling detectors of infrared telescopes? Answer: liquid nitrogen

Ex Output:

Liquid nitrogen is used for cooling detectors of infrared telescopes.