<xs:simpleType name="beaconType">
    <xs:annotation>
        <xs:documentation>Indicates whether there is any physical structure
			for the monument - helps location, these enumerations may need expanding
			</xs:documentation>
    </xs:annotation>
    <xs:restriction base="xs:string">
        <xs:enumeration value="cairn" />
        <xs:enumeration value="chimney" />
        <xs:enumeration value="large quadripod" />
        <xs:enumeration value="lighthouse" />
        <xs:enumeration value="marine beacon" />
        <xs:enumeration value="mast" />
        <xs:enumeration value="mast with targets" />
        <xs:enumeration value="no beacon" />
        <xs:enumeration value="other" />
        <xs:enumeration value="pillar" />
        <xs:enumeration value="post" />
        <xs:enumeration value="small quadripod" />
        <xs:enumeration value="tower" />
        <xs:enumeration value="tripod" />
        <xs:enumeration value="unknown" />
    </xs:restriction>
</xs:simpleType>

• beaconType
• land:beacon