ebremer commented on issue #2411:
URL: https://github.com/apache/jena/issues/2411#issuecomment-2902466866

   @VladimirAlexiev I'm putting a pull request to update ```arq --help```  
https://github.com/apache/jena/pull/3216
   
   *** clarify that --data can be used multiple times, and whether the other 
Dataset options can
   clarified in PR.  --data can be used multiple times
   
   *** clarify whether FILE can be a URL (http, https)
   can also be a URL (http/https) in ```--data``` and ```--graph``` but not in 
```--namedGraph```.  It may be useful to augment ```--namedGraph``` to be able 
to use URL.
   
   *** fix spelling of datset in --graph
   fixed in PR
   
   *** if the FILE in --graph and --namedGraph is in quad format, is the graph 
part of FILE removed?
   ```--namedGraph``` and ``--graph``` will have their quads ignored.  riot 
will report "Only triples or default graph data expected : named graph data 
ignored".  In my testing, if both options are used, the remaining triples will 
be merged into one graph.
   
   *** if the FILE in --graph is in triple format, what is the difference from 
--data?
   ```--graph``` will ignore quads and merge it with the triples of 
```--data``` or its default graph if ```--data``` is quads.
   
   *** if the FILE in --namedGraph is in triple format, is the name/URL of FILE 
used as the graph name?
   no, the path is dropped and only the file name is used.  
"/dir1/dir2/mydata.ttl" becomes <mydata.ttl> as the named graph name.
   
   *** move --desc to the Dataset section because it concerns input
   I can't say I entirely disagree with this.  However, "Dataset" section seems 
to be reserved for just raw data.  ``--desc``` assembler file does more than 
just raw data.  I defer @afs on this.
   
   *** describe --desc better
   
   *** https://jena.apache.org/documentation/query/cmds.html#arqquery is much 
poorer it should be brought in line with the command line help.
   
   I don't mind contributing more to the documentation, but I've never used 
Jena assembler files before, but I will glance at a manual.
   


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