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.

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

He air we breathe contains oxygen and other gases. Once in the lungs, oxygen is moved into the bloodstream and carried through your body. At each cell in your body, oxygen is exchanged for a waste gas called carbon dioxide. Your bloodstream then carries this waste gas back to the lungs where it is removed from the blood stream and then exhaled. Your lungs and respiratory system automatically perform this vital process, called gas exchange.
air ,oxygen ,carbon dioxide; waste gas

A rig drills into the earth where oil is present. A pipe is placed in the hole. A pump is added to the pipe. Oil is pumped out. Oil is placed in barrels. Barrels are loaded on trucks. Trucks go to a refinery. Crude oil is refined to motor oil. Motor oil is bottle. Shipped to gas stations.
oil ; crude oil ,motor oil