Task: Sentence Ordering
Input (English): Steps: (1) A mushroom gives off gills lined with basidia (2) The basidia gives off spores (3) The spores germinate (4) The spores create Hyphae (5) They join with Mycelium (6) A hyphal knot forms in the ground (7) A primordia shoots out of the ground (8) A mushroom cap is formed.  
Where does the following step fit into the given list of steps: Multiple Hyphae meet and converge 
Output (English):  After step 4.