Task: Sentence Ordering
Input (English): Steps: (1) Prophase, the chromosomes become visible (2) Centrioles separate to move to opposite poles (3) Metaphase, the chromosomes line up in the center (4) Anaphase, the chromatids separate (5) Are pulled apart (6) Telophase, the chromosomes gather at opposite poles (7) Two new nuclear membranes form (8) The cell membranes pinch  
Where does the following step fit into the given list of steps: Divide into two individual cells 
Output (English):  After step 8.