Definition: 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.
Input: Steps: (1) There is a fetus in the womb (2) They are born and are a baby (3) The baby grows into a child (4) Puberty turns the child into an adolescent (5) An adult becomes an elderly person (6) The elderly person dies.  
Where does the following step fit into the given list of steps: The adolescent becomes an adult 
Output:
 After step 4. 