Put template:

<VegBIEN>

    <_simplifyPath id="-1">

        <next>parent_id</next>

        <path>

            <location>

                <locationevent>

                    <project_id>

                        <project>

                            <projectname>$project_name</projectname>

                            <sourceaccessioncode>$project_id</sourceaccessioncode>

                        </project>

                    </project_id>

                </locationevent>

            </location>

        </path>

    </_simplifyPath>

</VegBIEN>

Inserted 3 new rows into database