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. 

[Q]: Sugar enters the body. Bloodstream. The pancreas. Insulin lower sugar levels. Bloo sugar goes back to normal. 
[A]: sugar 


[Q]: Human beings burn fossil fuels (oil, gas, etc.). Carbon dioxide from the burning fossil fuels enter the atmosphere. The make-up of the atmosphere changes. Some energy from the sun cannot escape back through the changed atmosphere. The earth begins to heat because of the extra trapped energy. Human beings cut down trees. Human beings do not re-plant the trees. Trees cannot help take the extra carbon dioxide from the atmosphere. The extra trapped energy starts to change the earth's short term weather. Eventually the long-term climate patterns start to change. 
[A]: fossil fuels ,carbon dioxide ,trees 


[Q]: The coal is pulverized to a very fine powder. The coal powder is mixed with hot air and blown into the firebox of the boiler. Water pumped through pipes inside the boiler is turned into steam by the heat. The pressure of the steam pushing against a series of giant blades turns the turbine shaft. Turbine shaft is connected to the shaft of the generator. The magnets inside the generator spin within wire coils to produce electricity. 
[A]:
coal powder ,water ,steam ,turbine shaft ,magnets ,electricity 


