Given a list of steps and an additional step, determine where the step fits into the original list of steps. A correct answer, correctly places the given step into the set of steps so that it creates a new plausible set of steps. Output must be formatted as 'After step n', where n is the step number after which the given additional step is to be inserted.

[EX Q]: Steps: (1) Food is taken into the mouth (2) The food is chewed (3) Saliva mixes with the food and starts breaking it down (4) The chewed food travels down the esophagus to the stomach (5) The stomach secretes acid (6) Grinds and mixes the food (7) The food moves to the small intestine (8) The small intestine uses enzymes to further break down the food (9) The food is expelled from the body.  
Where does the following step fit into the given list of steps: The food passes into the colon 
[EX A]:  After step 8. 

[EX Q]: Steps: (1) An airline reservation is made (2) The passenger arrives early at the airport (3) The luggage is checked (4) The passenger waits in line (5) The passenger shows their identification and gets a boarding pass (6) The passenger goes to their gate (7) The passenger gets in line when it's time to board (8) The plane arrives at the destination (9) The passenger gets off the plane at their destination.  
Where does the following step fit into the given list of steps: The person boards the plane 
[EX A]:  After step 7. 

[EX Q]: Steps: (1) Bloodstream (2) Cells in the body are attacked (3) Cells are killed (4) Different kinds of sickness are formed.  
Where does the following step fit into the given list of steps: Bacteria enters the body 
[EX A]:
 Before step 1.