name

<xsd:attribute name="name" use="required">
  <xsd:simpleType>
    <xsd:restriction base="xsd:string">
      <xsd:enumeration value="unspecified entity"/>
      <xsd:enumeration value="simple chemical"/>
      <xsd:enumeration value="macromolecule"/>
      <xsd:enumeration value="nucleic acid feature"/>
      <xsd:enumeration value="complex"/>
      <xsd:enumeration value="perturbation"/>
    </xsd:restriction>
  </xsd:simpleType>
</xsd:attribute>