Task: Sentence Ordering
Input (English): Steps: (1) The liver takes in blood from the rest of the body (2) The liver uses enzymes to clean the blood (3) The liver creates bile from the items filtered (4) The liver takes energy and stores it as glycogen (5) The bile is sent to the intestines.  
Where does the following step fit into the given list of steps: The cleaned blood is expelled 
Output (English):  After step 2.