IDoc child segment reused under different parents

Hi,

Is it possible in an IDoc that a child segment be reused under 2 different parent?

This is obvisously an hypothetical example:

In a same IDoc Type

Segment E111111

Has a child Segment E1AAAAA

and

Segment E122222

Has the same child Segment E1AAAAA

I would also apreciate if you could provide me a real IDoc Type where this situation occurs.

Thanks