partner-contact/partner_multi_relation_tabs/demo/res_partner_demo.xml

<?xml version="1.0" encoding="UTF-8"?>
<odoo>

    <!-- Partners -->
    <record id="partner_big_company" model="res.partner">
        <field name="name">Big company</field>
        <field name="is_company">1</field>
        <field name="customer" eval="1"/>
        <field name="ref">BIG</field>
    </record>

    <record id="partner_important_person" model="res.partner">
        <field
            name="category_id"
            eval="[(6,0,[ref('category_functionary')])]"
            />
        <field name="name">Bart Simpson</field>
        <field name="is_company">0</field>
        <field name="ref">BS</field>
    </record>

    <record id="partner_common_person" model="res.partner">
        <field name="name">Homer Simpson</field>
        <field name="is_company">0</field>
        <field name="ref">HS</field>
    </record>

</odoo>