In my sense, it should be clearly stipulated since the "Column 9: "attributes" paragraph when the ID tag is mentioned that the ID attributes are only mandatory for features that have children. (And similarly with the Parent...).
It only mentioned later within the text "The ID attributes are only mandatory for those features that have children".
In my sense, it should be clearly stipulated since the "Column 9: "attributes" paragraph when the ID tag is mentioned that the ID attributes are only mandatory for features that have children. (And similarly with the Parent...).
It only mentioned later within the text "The ID attributes are only mandatory for those features that have children".