Xml Schemas - Adverb Entry

Adverb Entry:

<!-- advEntry -->
<xsd:complexType name="advEntryType">
    <xsd:sequence>
        <xsd:element name="variants" type="xsd:string" minOccurs="1" maxOccurs="unbounded"/>
        <xsd:element name="modification" type="xsd:string" minOccurs="1" maxOccurs="unbounded"/>
        <xsd:element name="negative" type="negativeType" minOccurs="0" maxOccurs="1"/>
        <xsd:element name="interrogative" minOccurs="0" maxOccurs="1"/>
    </xsd:sequence>
</xsd:complexType>
                                                                                
<xsd:complexType name="negativeType">
    <xsd:attribute name="type" type="negativeTypeType" use="required"/>
</xsd:complexType>

<xsd:simpleType name="negativeTypeType">
    <xsd:restriction base="xsd:string">
        <xsd:enumeration value="negative"/>
        <xsd:enumeration value="broad_negative"/>
    </xsd:restriction>
</xsd:simpleType>