Google released their entire NLP system in C++ earlier this year. as open source. Has WL included this in its NLP? https://code.google.com/p/word2vec/
If not, is there a way to use their downloadable vector models in WL?
You can probably write out some similar code, but if you want to use that library and it's C++, then you'll want to use library link:
http://reference.wolfram.com/language/guide/CLanguageInterface.html