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https://issues.apache.org/jira/browse/UIMA-4565?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14711697#comment-14711697
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Marshall Schor commented on UIMA-4565:
--------------------------------------

I agree.  The logic here:  AnnotationBase has subject-of-analysis refs;  
Annotation is a subclass where the spans are denoted by begin/end pairs (ints); 
 other kinds of subclasses of AnnotationBase have subject-of-analysis refs like 
"images" with pixels, and spans are more naturally (perhaps) denoted by 2 
2-element sets of x,y coordinates (assuming rectangular areas).  These others 
are not (of course) "built-in"...  So the sofa feat should be on AnnotationBase.

> CAS.FEATURE_FULL_NAME_SOFA wrong?
> ---------------------------------
>
>                 Key: UIMA-4565
>                 URL: https://issues.apache.org/jira/browse/UIMA-4565
>             Project: UIMA
>          Issue Type: Bug
>          Components: Core Java Framework
>    Affects Versions: 2.8.1SDK
>            Reporter: Richard Eckart de Castilho
>             Fix For: 2.8.2SDK
>
>
> The CAS interface has to say this about the *sofa* feature's full name
> {noformat}
> FEATURE_FULL_NAME_SOFA = "uima.tcas.Annotation:sofa";
> {noformat}
> However, when I try to use this to filter out the sofa feature, I don't catch 
> it - and the reason seems to be that the *sofa* feature is actually defined as
> {noformat}
> uima.cas.AnnotationBase:sofa
> {noformat}
> ... at least that's what the debugger says.



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