---0.02-
 
 +--------------------------------------------------------------------------------------------------------------P1nt2a_a
 |
 |
 |                                                                          +-------------P1g8sa_a
 |                                               +--------------------------+
 |                                               |                          +----------P1fbna_a
 |                                               |
 +-----------------------------------------------+
                                                 |                    +--------------P1prya_a
                                                 |                    |
                                                 +--------------------+
                                                                      +-----------------P1g8aa_a