Put template:

<VegBIEN>

                <next>parent_id</next>

                <path>

                    <location>

                        <locationevent>

                            <taxonoccurrence>

                                <aggregateoccurrence>

                                    <cover_fraction><_percent_to_fraction><value>$cover</value></_percent_to_fraction></cover_fraction>

                                    <sourceaccessioncode>$taxonimportance_id</sourceaccessioncode>

                                </aggregateoccurrence>

                                <sourceaccessioncode>$taxonobservation_id</sourceaccessioncode>

                            </taxonoccurrence>

                        </locationevent>

                    </location>

                </path>

            </_simplifyPath>