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https://issues.apache.org/jira/browse/JENA-1608?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16630471#comment-16630471
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andrew u frank commented on JENA-1608:
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I am sorry to have assumed that the playground would be "correct" - the 
specifiations are VERY different to read . the 1.1 version seems to improve, 
but it does not print ok and I need paper to make the connections between parts 
of the specification and to get their meaning and the intentions behind the 
rules. i understand that the jena with json-ld 1.1 will be late 2020? 

reading the document 1.0 I do not see what is normative, except for the 
grammar, which does not explain what effect the elements have; the description 
of what it means is all in the non-normative sections. specifically, i can not 
immediately see (normative) what effect the presence or absence of the @base or 
@vocab entry has. I see that I have to check the API document, where a long 
list of if .. sentences gives the definition. I can understand the intention, 
but it calls for more detailed non-normative explanations. difficult...

thank you for all the work - I appreciate your efforts and the very useful 
result!

andrew 

> different output when processing json-ld in the playground and in riot - 
> solved in 
> -----------------------------------------------------------------------------------
>
>                 Key: JENA-1608
>                 URL: https://issues.apache.org/jira/browse/JENA-1608
>             Project: Apache Jena
>          Issue Type: Bug
>          Components: RIOT
>    Affects Versions: Jena 3.6.0, Jena 3.8.0
>            Reporter: andrew u frank
>            Priority: Minor
>              Labels: newbie
>         Attachments: problem.jsonld, problem.ttl, 
> problem_output_playground.txt
>
>
> I have the json-ld document [^problem.jsonld] processed on the json-ld 
> playground (which I assume is authoritative) and get the result  
> [^problem_output_playground.txt]. if I process the same file with RIOT the 
> result is different, namely [^problem.ttl]. 
> The difference is simply that RIOT does not include the rdf-objects which are 
> not using a blank node as identifier. If a line 
>     "@base": "http://gerastree.at/lit_2014#" 
> is added to the context, the output seems to conform to what is produced by 
> the playground. 



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