Negation handling for Amharic sentiment classification

All four data sets are labeled for either "positive" or "negative". Tow of the data sets : ebc_facebook_news_only_Amharic_texts.csvREM.xml and news_reviews2009_2010_all.csvREM.xml are labeled by professionals of EBC and GCAO, respectively. Whereas, the other datasets are labeled by annotators who were employed by the authors. We strongly belief that it further requires enhancement.