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: Air contains invisible moisture called water vapor. Excess water vapor is condensed out as water in the form of water droplets. Water droplets are carried up into the clouds. The clouds become heavy with water droplets. When the cloud is saturated. Rain will fall. 

Output: water vapor ,water droplets ,cloud ,rain 


Input: Consider Input: Animals and plants die in soft soil or mud. Sediment builds up over the remains. The remains decompose, leaving only trace amounts. The remaining parts over the years are replaced with mineral. A fossil is formed. 

Output: animals ,plants ,sediment ,remains ,mineral ,fossil 


Input: Consider Input: Salt water is contained in a factory or plant. The water is boiled to a very high tempature. The salt becomes seperated from the water. The salt is removed. The water is able to be drank at this point. 


Output: salt water ,salt ,water