# No named graphs returned with reasoning explain --print-named-graphs **URL:** \ **Category:** Support\ **Created:** [April 10, 2017, 6:13pm UTC](https://community.stardog.com/t/no-named-graphs-returned-with-reasoning-explain-print-named-graphs/224 "2017-04-10T18:13:22Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![robertbhacker](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/robertbhacker/32/68_2.png) [@robertbhacker](https://community.stardog.com/u/robertbhacker)\ **Post date:** [April 10, 2017, 6:13pm UTC](https://community.stardog.com/t/no-named-graphs-returned-with-reasoning-explain-print-named-graphs/224/1 "2017-04-10T18:13:23Z")
Hi Community, I have been using reasoning explanation feature a lot in my development. However, I have found that the command stardog reasoning explain --print-named-graphs doesn't return named graphs even though there is named graphs associated. For example, I use LUBM dataset, execute the command and get the result: ![](https://canada1.discourse-cdn.com/flex030/uploads/stardog/original/1X/a5b62c7a32f196fd50e4facc476cd91f67f9cf16.png) In my database, triple :FullProfessor1 :owl#headOf Department7.University0.edu is in graph id [http://example.org/graph11](http://example.org/graph11), but it is never returned by this command. I have tried this in stardog 4.2.4, 4.2.2, 4.1.3, and 4.0-RC2, none of these works. I am wondering what I should do to fix this problem? Thanks! Robert ---
**Author:** ![stephen](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/stephen/32/27_2.png) [@stephen](https://community.stardog.com/u/stephen)\ **Post date:** [April 10, 2017, 6:18pm UTC](https://community.stardog.com/t/no-named-graphs-returned-with-reasoning-explain-print-named-graphs/224/2 "2017-04-10T18:18:37Z")
Hi Robert, It appears that you’re keeping the default output format of Turtle, which doesn’t support named graphs. Try adding a parameter with the `--output-format` option set to Trig, Nquads, etc. that support displaying named graphs Edit: The default output format is actually TEXT, but I’m willing to bet that it’s based on Turtle, since that’s the default most places it can be. ---
**Author:** ![robertbhacker](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/robertbhacker/32/68_2.png) [@robertbhacker](https://community.stardog.com/u/robertbhacker)\ **Post date:** [April 10, 2017, 6:37pm UTC](https://community.stardog.com/t/no-named-graphs-returned-with-reasoning-explain-print-named-graphs/224/3 "2017-04-10T18:37:25Z")
Thank you Stephen, I have used --output-format option, but no graph names returned... ![](https://canada1.discourse-cdn.com/flex030/uploads/stardog/original/1X/946c88736dce4d085b1fea521d3be1d3a0951f26.png) I also checked if the named graph is still in the database, and it turns out to be there. I also tried to use Java APi to retrieve all named graphs: Proof.getNamedGraphs() will also never return any... ---
**Author:** ![stephen](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/stephen/32/27_2.png) [@stephen](https://community.stardog.com/u/stephen)\ **Post date:** [April 11, 2017, 3:34pm UTC](https://community.stardog.com/t/no-named-graphs-returned-with-reasoning-explain-print-named-graphs/224/4 "2017-04-11T15:34:02Z")
Hi Robert, Could you send/attach the dataset you’re using? I am unable to reproduce this problem with both a fake dataset I created and a LUBM dataset that I found. If it’s too large, could you at least send an export of the triples/quads needed to make this assertion? ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex030/uploads/stardog/original/2X/e/ed66b48a616f505106a4acde3c9cee7e6da9bc67.svg) [@system](https://community.stardog.com/u/system)\ **Post date:** [April 25, 2017, 3:36pm UTC](https://community.stardog.com/t/no-named-graphs-returned-with-reasoning-explain-print-named-graphs/224/5 "2017-04-25T15:36:20Z")
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