[selected_node] | element/part | 
+-id | number/integer | 
+-stdout | number/integer | 1
+-a | text/plain | a
+-b | element/part | 
| +-a | text/plain | a
| +-b | text/plain | b
| +-c | text/plain | c
| +-d | text/plain | d
| | :-p | text/plain | p
| +-e | text/plain | e
| :-a | text/plain | a
| :-b | text/plain | b
| :-c | number/integer | 1
+-c | number/integer | 1
+-d | number/integer | 2
+-e | text/plain | f
+-f | text/plain | b
+-g | text/cybol-path | .b.d:p
+-h | text/cybol-path | .g
+-i | text/cybol-path | .b