Failed to convert rs3 to dis (Can't mix sibling types)

[mohamadi-sara20]

I'm trying to convert the attached .rs3 file (created by rstWeb) to dis; but it fails with the following error:

Can't mix sibling types. Expected 'N' or 'S', got: elaboration

I've got tens of files with the same problem. Can anyone tell me what's wrong with my rs3 file?
The file can be found here: samp.zip

[mohamadi-sara20]

Hi,

I have realized where this problem comes from. Look at the picture I've attached here.

1. One node joins another node, but we do not create a span of their combination.
2. Then a third node joins these nodes at the same level.

This is where .rs3 conversion to .dis fails. I had several of these in my "Same-Unit" constructions and that's what was causing the error.

Do you have any thoughts on this? Perhaps from the theoretical RST viewpoint?

Anyway, feel free to close this issue, if it's best to address this problem somewhere else or if you do not believe this type of RST structure is valid.