┌─VOLCA_Vocar.0003s0324.1
──────────────────────────┤                                                   ┌─VOLCA_Vocar.0003s0322.1
                          │                         ┌─────────────────────────┤
                          └─────────────────────────┤                         └─VOLCA_Vocar.0003s0325.1
                                                    └─VOLCA_Vocar.0033s0047.1