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. 

Ex Input:
Green is a color that gathers sunlight easily. Sunlight is gathered by the leaves of the plant. The sunlight is broken down into glucose through photosynthesis. The glucose travels the plant. The plant uses that glucose as energy to grow. 

Ex Output:
sunlight ,glucose ,energy 


Ex 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. 

Ex Output:
trash ,truck 


Ex Input:
Waves hit the coast. Waves have energy that pushes the water and sediment. The sediment can help erode land like sandpaper. Water washes the sediment back. Some sediment is left as sand. 

Ex Output:

waves ,coast ,water ,sediment ,land ,sand