Task: Paraphrasing
Input (English): Question: Which form of dialysis has a patient’s blood pass through a length of tubing that travels through an artificial kidney machine? 
Answer: hemodialysis. 
Sentence: Hemodialysis has a patient’s blood pass through a length of tubing that travels through an artificial kidney machine.
Output (English): In order to remove waste products from the blood, some people need to undergo hemodialysis, where a machine acts as an artificial kidney.  Tubing is used to move the blood from the patient to the machine.