Add a Blogs Entry, and notice that id for the:
Title is '33' instead of '_33_title'.
Add a Document Library Folder, and notice that id for the:
Name is '20' instead of '_20_name'.
Description is '20' instead of '_20_description'.
When you try to add these objects, it will throw an error. For example when you add a Document Library Folder it will display the error message 'Please enter a valid name.' **