<group name="LiteralValuesChoice">
    <annotation>
        <documentation>Identifies the type of this literal input and provides supporting information. </documentation>
    </annotation>
    <choice>
        <element ref="ows:AllowedValues">
            <annotation>
                <documentation>Indicates that there are a finite set of values and ranges allowed for this input, and contains list of all the valid values and/or ranges of values. Notice that these values and ranges can be displayed to a human client. </documentation>
            </annotation>
        </element>
        <element ref="ows:AnyValue">
            <annotation>
                <documentation>Indicates that any value is allowed for this input. This element shall be included when there are no restrictions, except for data type, on the allowable value of this input. </documentation>
            </annotation>
        </element>
        <element name="ValuesReference" type="wps:ValuesReferenceType">
            <annotation>
                <documentation>Indicates that there are a finite set of values and ranges allowed for this input, which are specified in the referenced list. </documentation>
            </annotation>
        </element>
    </choice>
</group>