Reasons this high has probability of credibility:  
Research probably used on Facebook digital assistant M.  
Tomas Mikolov, the author of word2vec.  
Paper <i>with</i> source code.<p><a href="http:&#x2F;&#x2F;arxiv.org&#x2F;pdf&#x2F;1503.01007.pdf" rel="nofollow">http:&#x2F;&#x2F;arxiv.org&#x2F;pdf&#x2F;1503.01007.pdf</a><p><a href="https:&#x2F;&#x2F;github.com&#x2F;facebook&#x2F;Stack-RNN" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;facebook&#x2F;Stack-RNN</a>