<xsd:simpleType name="SeatDirection">
    <xsd:annotation>
        <xsd:documentation source="Description">Identifies the orientation of a seat relative to the direction of  travel.</xsd:documentation>
        <xsd:appinfo>
            <otm:OTA2Entity type="EnumerationClosed" xmlns:otm="http://www.OpenTravel.org/ns/OTA2/AppInfo_v01_00">SeatDirection</otm:OTA2Entity>
        </xsd:appinfo>
    </xsd:annotation>
    <xsd:restriction base="xsd:string">
        <xsd:enumeration value="Airline" />
        <xsd:enumeration value="Back" />
        <xsd:enumeration value="Facing" />
        <xsd:enumeration value="Lateral" />
        <xsd:enumeration value="Unknown" />
    </xsd:restriction>
</xsd:simpleType>