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Machine learning is absolutely fascinating and if you watched the WWDC 2017 sessions, you know how awesome it is! So in this set of videos, I'll be sharing with you what I learned about Natural Language Processing in this last video of the NLP series and discovered with NSLinguisticTagger and how powerful it is. If you want to explore and analyze natural language, I break it down for you!;) If you want to explore and learn more about it, definitely read the documentation and watch the videos: https://developer.apple.com/machine-l... Also, do some experiments! I didn't show the raw output for tag and tokens, I dare you to see what outputs without forcible unwrapping everything (which isn't the best thing to do - guard statements should be used if you aren't absolutely positive that there is valid text coming in) and why I coded it the way I did.