

  T S B-B B T-T

  | | |   | | |

R A-M H-H-H-H-H-G

|   | |   |   | |

H-H-H-H S < C H G   Level 1

  |     v   | | |

  D-D-1-1-1-B H P

      | < |   |

      1-I-1-A-H

        |

        O

        | 

        T-T

        |

      T-T

      |

      T

      |

      T

         

    L-L-O A         Level 2

    |   | |

L-C L-S < A

|         |

D-D-2-2-2 H-B

    | < | |

    2   2-H

