The easy to use API, which allows me as an non-native speaker access to complex tools like NLTK or Stanford Parser without having much previous knowledge about these topics! I'm currently working with this software in order do build some applications using NER/POS tagging techniques but also other tasks such us sentiment analysis etc... But what i really love is that it's open source so you can even contribute if there are features missing from its current version. So far everything works pretty well and sometimes when running large files my computer crashes due to memory issues. This happens more often than not because python uses lots o RAM compared to most languages out there. Maybe they should improve their support regarding Linux users since we're quite popular here :P Other then those small things all seems fine at first sight :) Definitely give it try before deciding whether something else would be better suited your needs! My primary goal was.
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