Anonymous elements

[balamurugan.kannan@ps.ge.com]

Hi i have problem of definig elements inside the root element. i dont know
what elements can come inside the root element in that case how do i declare
my root element. 

The problem is some how like this 

           <Root>
              <may contain element 1/>
              <may contain element 2/>
              <may contain element 4/>
              <may contain element 3/>
                  ...........................
                  ...........................
            </Root>


Please help me how to write SCHEMA for the root element

Thanks in advance
Bala