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: Consider Input: Sound enters the ears of a person. The sound hits a drum that is inside the ear. The drum inside the ear converts the sound to electrical impulses. The electrical impulses are sent to the brain. The brain can decode the impulses into sound.

Output: sound ,electrical impulses ,sound

Input: Consider Input: A red giant burns mass. This mass creates high core temperatures. The mass decreases. The red giant can no longer fuse the carbon and oxygen in its center. The gravity of the star can no longer hold the outside layers. The layers break away. Only the inner core remains. This inner core is known as a white dwarf.

Output: red giant ,white dwarf

Input: Consider Input: Water evaporates from the earth. The evaporated water condenses into water drops. The water drops fall back to earth. The water accumulates on the earth. The water collects into bodies of water. The water soaks into the earth.
Output: water ,evaporated water ,water drops