Many times I see constructions like
the node's text , the node text
the node's tag, the node tag
the page elements, the page's elements
the page footer (to mean the footer of page), the page header...
I know that they are different but it seems sometimes they can be used in place of each other. for example what is the difference of
- the page elements
- the elements of page
- the page's elements
I found it awkward to repeat the page's elements if I can't use "the page elements".
Are there times that we can use both an adjective and a possessive construction for something?