Is there a way to create osm Boundarys out of oracle Data?

First of all sry for my bad english! ;)

I like to recreate the osm scheme out of our own scheme with FME Desktop

We'v got lines transformed with the keys:

boundary=administrative

admin_level=3-8

and combined lines with the keys:

osm_relation_type=boundary

type=boundary

boundary=administrative

name=*

admin_level=3-8

My Problem is the FME osm-writer creates his own geometries without the line-tags but i'd like to get my own created lines as a member of the Relations.