partner-contact/partner_relations/view/res_partner_relation_type.xml

<openerp>
    <data>
        <record id="tree_res_partner_relation_type" model="ir.ui.view">
            <field name="model">res.partner.relation.type</field>
            <field name="type">tree</field>
            <field type="xml" name="arch">
                <tree version="7.0" string="Partner relation">
                    <field name="name" />
                    <field name="name_inverse" />
                    <field name="contact_type_left" />
                    <field name="contact_type_right" />
                </tree>
            </field>
        </record>
        <record id="form_res_partner_relation_type" model="ir.ui.view">
            <field name="model">res.partner.relation.type</field>
            <field name="type">form</field>
            <field type="xml" name="arch">
                <form version="7.0" string="Partner relation">
                    <sheet>
                        <group>
                            <group
                                colspan="2" col="2"
                                string="Left side of relation"
                            >
                                <field name="name" />
                                <field name="contact_type_left" />
                                <field name="partner_category_left" />
                            </group>
                            <group
                                colspan="2" col="2"
                                string="Right side of relation"
                            >
                                <field name="name_inverse" />
                                <field name="contact_type_right" />
                                <field name="partner_category_right" />
                            </group>
                        </group>
                    </sheet>
                </form>
            </field>
        </record>
    </data>
</openerp>