Task: Paraphrasing
Input (English): Question: What term, calculated by multiplying heart contractions by stroke volume, means the volume of blood pumped by the heart in one minute? 
Answer: cardiac output. 
Sentence: The term cardiac output, calculated by multiplying heart contractions by stroke volume, means the volume of blood pumped by the heart in one minute.
Output (English): The volume of blood pumped by the heart in one minute is calculated by multiplying heart contractions by stroke volume, this is called cardiac output.