<?xml version="1.0"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
            targetNamespace="D"
            elementFormDefault="qualified"
            xmlns:Dish_name_space="D">
    <xsd:element name="Dish_option" type="xsd:string"/>
    <xsd:element name="Dessert" substitutionGroup="Dish_name_space:Dish_option"/>
    <xsd:element name="Starter" substitutionGroup="Dish_name_space:Dish_option"/>
    <xsd:element name="Dish">
        <xsd:complexType>
            <xsd:sequence>
                <xsd:element ref="Dish_name_space:Starter" minOccurs="0"/>
                <xsd:element name="Main_course" type="xsd:string"/>
                <xsd:element ref="Dish_name_space:Dessert" minOccurs="0"/>
            </xsd:sequence>
        </xsd:complexType>
    </xsd:element>
</xsd:schema>