ifc:IfcPermitTypeEnum

<xs:simpleType name="IfcPermitTypeEnum">
  <xs:restriction base="xs:string">
    <xs:enumeration value="access"/>
    <xs:enumeration value="building"/>
    <xs:enumeration value="work"/>
    <xs:enumeration value="userdefined"/>
    <xs:enumeration value="notdefined"/>
  </xs:restriction>
</xs:simpleType>