Task: Sentence Ordering
Input (English): Steps: (1) Green is a color that gathers sunlight easily (2) Sunlight is gathered by the leaves of the plant (3) The glucose travels the plant (4) The plant uses that glucose as energy to grow.  
Where does the following step fit into the given list of steps: The sunlight is broken down into glucose through photosynthesis 
Output (English):  After step 2.