+ISSUE.DynamicIssueSource <T ISSUE.IssueSource
+ L0.HasDescription "A dynamic issue source is a source that is browsed purely through the Variable interface to produce a single subtree to represent issues. The issues do not have to have a database resource representation backing them."
+
+ISSUE.Issue.ContextList <T L0.List
+ @L0.assert L0.List.ElementPredicate
+ ISSUE.Issue.ContextList.Element <R L0.List.ElementWithInverse
+