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. 
Q: A seed germinates. It grows into a plant. The mature plant produces flowers. The flowers become fertilized. Produce seeds in a fruit or seedpod. The plant dies. The new seeds germinate to form a new plant. 
A: 
seed ,plant ,flowers ,new seeds ,new plant 