Task: Sentence Ordering
Input (English): Steps: (1) Light energy is absorbed by chlorophyll in a plant (2) The plant uses nutrients in the soil (3) The plant uses carbon dioxide in the air to produce glucose (4) The plant uses the glucose to give itself energy (5) Oxygen is released as a by product.  
Where does the following step fit into the given list of steps: The light energy is used to convert carbon dioxide 
Output (English):  After step 1.