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): When a patient's blood is passed from a length of tubing through an artifical kidney machine, the process is called hemodialysis.