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) Adult mushrooms produce spores (2) Release them into the air by process of sporulation (3) Spores are carried by the wind (4) Land in a hospitable growing environment (5) The mushroom starts growing (6) The adult mushroom produce spores of its own to repeat the process.  
Where does the following step fit into the given list of steps: The spores germinate into the soil 
Output:
 After step 4. 