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I am working with a list of countries that I then want to utilize Interpreter on for some later functionality. For some reason, "South Africa" returns as a single item list within the list while all the other countries do not.

countries = {"eSwatini", "South Africa", "United States", "Canada", 
   "South Sudan"};
Interpreter["Country"][# & /@ countries]

enter image description here

I then tried to expand the dataset by looking at a list of all countries:

webcountries = 
  Import["https://www.dfa.ie/travel/travel-advice/a-z-list-of-\
countries/", "Data"];
countrylist = webcountries[[4]];
Interpreter["Country"][# & /@ countrylist]

There were a few in the list that Interpreter failed to work with, but interestingly, only South Africa returns as a single item list within the list.

I can't think of any other reason this would happen besides a bug.

Thoughts?

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  • $\begingroup$ With version 11.3 on my Mac, your code produces a single-item list for all five entries. $\endgroup$
    – Bob Hanlon
    Commented Jul 9, 2018 at 18:32
  • $\begingroup$ Fascinating. I am also running 11.3, but on Windows 10. I exited out of everything and started fresh, but still got the same result shown in the image above. I tried running it with the Wolfram online options (Mathematica Online, Programming Lab, Development Platform) and they all returned as a list with no countries being single-item lists. Seems odd to have three different results from the same code. $\endgroup$
    – kickert
    Commented Jul 9, 2018 at 18:40
  • $\begingroup$ when I execute your code on wolfram cloud through a mobile app, which I believe is running 11.3, I get a list of single items, as @BobHanlon reported. $\endgroup$
    – MarcoB
    Commented Jul 9, 2018 at 19:06
  • $\begingroup$ I think Bob was saying he is getting a list of single item lists, whereas the wolfram cloud returns a straight list of Entities. Is anyone able to duplicate my results on a similar setup (11.3 on Windows 10). $\endgroup$
    – kickert
    Commented Jul 9, 2018 at 19:11
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    $\begingroup$ I cannot reproduce output with 11.3 on Win 10; I get a single-item list. Note that you do not need to map that function over the list Interpreter["Country"][countries] will do just fine. $\endgroup$
    – Edmund
    Commented Jul 9, 2018 at 21:10

1 Answer 1

Reset to default
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I ended up contacting Wolfram Technical Support on this issue. Their recommendation was that reset Mathematica to its default configuration. I did that as outlined in this site: http://support.wolfram.com/kb/12464

All seems to work as expected at this point.

No idea why such a specific error would occur, but at least I have a fix for it.

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  • 1
    $\begingroup$ More likely than not, the value was cached and incorrect somehow. You effectively deleted the cached values when you removed those directories. $\endgroup$
    – Searke
    Commented Jul 13, 2018 at 19:35

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