@aiteam, please remember to add source of text when uploading them 
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Also You can read this topic (among many others) which has some useful info for processing sentences https://discourse.mozilla.org/t/help-needed-in-processing-large-polish-text-base/40778. Since it seems You are knowledgeable in NLP and stuff (at least more than me, an amateur) maybe You would like to share your scripts with the community? I am sure we will find more sentence sources waiting to get processed in many lanuages.