rel 

The identifier of the relationship between the current concept (containing the facet) and the concept identified by the facet value - expressed by a QCode

Attribute Information

Used By

Element facet

Source 

<xs:attribute name="rel" type="QCodeType" use="optional">
  <xs:annotation>
    <xs:documentation>The identifier of the relationship between the current concept (containing the facet) and the concept identified by the facet value - expressed by a QCode</xs:documentation>
  </xs:annotation>
</xs:attribute>

Sample