We exploited the corpora developed by (Reyes et al., 2013) , <cite>(Barbieri et al., 2014)</cite> , (Mohammad et al., 2015) , (Ptáček et al., 2014) , (Riloff et al., 2013) , (Ghosh et al., 2015) , (Karoui et al., 2017) , and (Sulis et al., 2016) .