query oslc_cm list box attribute value

I try to use oslc.cm query with custom attribute for listbox.
listbox that has Value1
Value2
Value3

how can we use it in oslc_cm.query for searching process?

<customAttribute id="test" name="Test Arg" type="testYaz"/>
<enumeration attributeTypeId="testYaz">
<literal default="true" icon="processattachment:/enumeration/unassigned.gif" id="testYaz.literal.l1" name="Value1"/>
<literal icon="processattachment:/enumeration/unassigned.gif" id="testYaz.literal.l2" name="Value2"/>

</enumeration>

I can list work item types ,for example defect.
https://localhost:9443/jazz/oslc/contexts/_WSmpcIgJEd-Vr42ll5AhIQ/workitems?oslc_cm.query=dc:type%3D"defect"&oslc_cm.properties=dc:title,dc:identifier,dc:type,dc:description,dc:subject,dc:creator,dc:modified