IngredientList

<xs:complexType name="IngredientList">
  <xs:sequence>
    <xs:element ref="r:title" minOccurs='0' maxOccurs='1'/>
    <xs:element ref="r:ingredient" minOccurs='1' maxOccurs='unbounded'/>
  </xs:sequence>
</xs:complexType>

<xs:element name="ingredientList" type="r:IngredientList"/>