You will be given a definition of a task first, then some input of the task.
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.

Question: Which of the following is NOT a description of compounds? Answer: They can exist in the form of atoms or molecules.
Output:
They can exist in the form of atoms or molecules of the following is not a description of compounds.