Instructions: In this task, you are given a paragraph, and your job is to generate comma-separated entities present in the given paragraph. Generate entities from a given passage in such a way that (i) they are present in the paragraph, (ii) they are non-duplicate, (iii) they underwent a state change during the process. Avoid creating entities that (i) aren't present in the process paragraph and (ii) aren't significant. 
Input: The blood sugar drops in a body. Cells in the pancrease release glucagon. The liver in response turns the glucagon into glucose. And releases it into the blood. The blood sugar levels are restored. 
Output:
glucagon ,glucose 