Hi,
I understand your request. Two black lists exist for single and double keywords, I have not extended to the sentence because in my original idea the sentence should be a "whole sentence" extracted by the body content and used (as example) as page description, so it has no sence to drop single words from it. But it could be added with a little change to the plugin code. I have added to my to-do list for the next version...

Kind regards,
Luigi