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.

Steps: (1) The human body takes a breath inward (2) Air is transported to the lungs (3) Air reaches the alveoli, the smallest air sacs in the lungs (4) In the alveoli, air passes into the blood within small capillaries (5) The gaseous oxygen in the air dissolves into the capillary blood (6) The dissolved oxygen is picked-up by red blood cells (7) Red blood cells circulate throughout the body and reach the various tissues (8) Within small capillaries, the heme release the oxygen (9) The oxygen can then reach the cells within the tissue  
Where does the following step fit into the given list of steps: The red blood cells bind the oxygen via a protein called heme 
 After step 6. 

Steps: (1) Food is put into mouth (2) Food is chewed and mixed with saliva (spit) (3) Food travels down the esophagus (throat) (4) Food travels into the stomach (5) Acid in the stomach breaks the food down further (6) Food travels into the small intestine (7) Nutrients from food are absorbed into the blood stream (8) Most of the remaining material is now waste (9) The waste is eventually removed from the body.  
Where does the following step fit into the given list of steps: Food travels into the large intestine 
 After step 7. 

Steps: (1) Enters the lungs (2) The oxygen fills the sacs in your lungs (3) Carbon dioxide is removed from the lungs and exhaled (4) The oxygen is pass throughout your body.  
Where does the following step fit into the given list of steps: Air is taken through the mouth 

 Before step 1.