| <xs:complexType name="CladeRelation">
  <xs:annotation>
    <xs:documentation>This is used to express a typed relationship between two clades. For example it could be used to describe multiple parents of a clade.</xs:documentation>
  </xs:annotation>
  <xs:sequence>
    <xs:element name="confidence" type="phy:Confidence" minOccurs="0"/>
  </xs:sequence>
  <xs:attribute name="id_ref_0" type="phy:id_ref" use="required"/>
  <xs:attribute name="id_ref_1" type="phy:id_ref" use="required"/>
  <xs:attribute name="distance" type="xs:double"/>
  <xs:attribute name="type" type="xs:token" use="required"/>
</xs:complexType> |