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. 

A plant dies. Bacteria from the ground migrate to the plant material. Bacteria release enzymes onto the plant material. The enzymes break down the plant cells to simpler components. The bacteria absorb the resulting components. 
bacteria ,enzymes ,plant cells ,components 

You must decide the purpose of the satellite. You must draw up a plan to what kind of orbit the satellite will travel. You make preparations for the rocket that will travel into space. Prepare the crew that will send it there. You begin the countdown date for the rocket. And then you send the rocket carrying the satellite into space. Once in orbit the satellite will be placed where it was planned. 
satellite ,rocket 

Blood enters the kidney. The blood travels into the neophrons. Waste is expelled via the neophrons. The waste goes to the bladder in the form of urine. The clean blood exits the kidneys. 

blood ; clean blood ,waste ,urine