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: 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. 
Example Output: What do lungs do?

Example Input: Add dirty laundry to the washing machine. Add laundry detergent to the washing machine. Select the setting for the load of laundry. Close the door of the washing machine. Turn on the washing machine. 
Example Output: How do you use a washing machine?

Example Input: A seed is in soil. The seed germinates. The plant grows roots. The plant grows out of the ground. The plant gets bigger. The plant flowers. The flower produces fruit. The fruit releases seeds. The plant dies. 
Example Output:
Describe the life cycle of a plant.