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 is the amount of product that may be produced by a reaction under specified conditions called? Answer: theoretical yield
Example Output: The amount of product that may be produced by a reaction under specified conditions is called theoretical yield.

Example Input: Question: What forms a ketone when oxidized? Answer: secondary alcohol
Example Output: Secondary alcohol forms a ketone when oxidized.

Example Input: Question: Why are most fossils found in sedimentary rocks? Answer: Organisms can be preserved in sedimentary rock.
Example Output:
Most fossils are found in sedimentary rocks because organisms can be preserved in sedimentary rock.