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.

Example Input: Question: What do you call the pattern of lines formed when light passes through a prism to separate it into the different frequencies of light it contains? Answer: atomic emission spectrum
Example Output: Atomic emission spectrum do you call the pattern of lines formed when light passes through a prism to separate it into the different frequencies of light it contains.

Example Input: Question: What type of substance is any matter that has a fixed chemical composition and characteristic properties? Answer: pure chemical substance
Example Output: Pure chemical substance type of substance is any matter that has a fixed chemical composition and characteristic properties.

Example Input: Question: What force increases a slide downhill and decreases a slide uphill? Answer: gravity
Example Output:
Gravity force increases a slide downhill and decreases a slide uphill.