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. 

Example Input: An eagle flys along. The eagle spots a mouse on the ground. The eagle swoops down. Catches the mouse in its talons. The eagle has a meal. 
Example Output: mouse ,meal 

Example Input: Bees land on flowers and eat the nectar of the plants. While on the flowers pollen gets on the bee's fur. The bee flies to another area with other flowers. The pollen is deposited in that area. A plant is able to reproduce. 
Example Output: bee ,nectar ,pollen 

Example Input: Trash is placed into a garbage container in the house. The trash is moved to a centralized container for the house. Trash is picked up by a sanitation company. The trash is combined in a large truck with trash from all around the city. The truck goes to the landfill. The truck dumps the trash into the landfill. 
Example Output:
trash ,truck