<xs:element name="concept">
    <xs:annotation>
        <xs:documentation>A set of properties defining a concept</xs:documentation>
    </xs:annotation>
    <xs:complexType>
        <xs:sequence>
            <xs:element name="conceptId" type="ConceptIdType">
                <xs:annotation>
                    <xs:documentation>The preferred unambiguous identifier for the concept.</xs:documentation>
                </xs:annotation>
            </xs:element>
            <xs:element name="type" type="QualPropType" minOccurs="0">
                <xs:annotation>
                    <xs:documentation>The nature of the concept.</xs:documentation>
                </xs:annotation>
            </xs:element>
            <xs:element ref="name" maxOccurs="unbounded" />
            <xs:choice minOccurs="0" maxOccurs="unbounded">
                <xs:element ref="definition" />
                <xs:element ref="note" />
                <xs:element ref="facet" />
            </xs:choice>
            <xs:group ref="ConceptRelationshipsGroup" />
            <xs:group ref="EntityDetailsGroup" minOccurs="0" />
            <xs:any namespace="##other" processContents="lax" minOccurs="0" maxOccurs="unbounded" />
        </xs:sequence>
        <xs:anyAttribute namespace="##other" processContents="lax" />
    </xs:complexType>
</xs:element>