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https://issues.apache.org/jira/browse/UIMA-2758?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13660460#comment-13660460
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Peter Klügl commented on UIMA-2758:
-----------------------------------

Right now, the feature matches are restricted to short name type references. I 
do not know if I will change that, because if the short name is ambiguous then 
the user should use type variables anyway. The IDE actually supports types with 
complete namespaces, but the engine doesn't yet.
                
> TextMarker: Provide support for tree structures and parse trees in rule 
> language
> --------------------------------------------------------------------------------
>
>                 Key: UIMA-2758
>                 URL: https://issues.apache.org/jira/browse/UIMA-2758
>             Project: UIMA
>          Issue Type: New Feature
>          Components: ruta
>            Reporter: Peter Klügl
>            Assignee: Peter Klügl
>
> Manipulation of features which refer to annotations and matching on simple 
> features is currently supported, but matching on the complex values of some 
> feature is not. A first step can be something like (Type Person with feature 
> "title" of type Annotation):
> Person.title;
> This rule matches on all annotations, which are values of features of 
> annotations of the type Person.
> This new language element can also be used for syntactic sugar when checking 
> primitive feature values:
> Person.begin=0 (A Person annotation, which starts a offset 0)
> This can only be a first step towards supporting tree structures. Maybe there 
> is no way around something for explicitly and directly referring to certain 
> annotations (which is not possible right now, but is done by using the type).

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