In this task, you are given a paragraph, and your task is to construct a question from the given passage. Construct question in such a way that (i) it is well explained in the paragraph, (ii) the words may/may not be present in the paragraph, (iii) it should start with what/how/describe. Avoid creating a question that (i) is just relevant to one or two sentences, and (ii) not relevant to passage. 

Example Input: 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. 
Example Output: How do bacteria break down dead plants?

Example Input: Food. Water enter the body. Bloodstream. Food and water enter the pancreas. The pancreas breaks down carbs. Helps digest other foods and liquids. 
Example Output: Describe how the pancreas works

Example Input: Coal is burned in a boiler. Steam is produced under pressure. Flows into a turbine. The turbine spins. Creates electricity. 
Example Output:
How does a coal-fired power plant work?

