TY - CONF T1 - Is this Sentence Difficult? Do you Agree? T2 - Proceedings of the 2018 Conference on Empirical Methods in Natural Language Processing Y1 - 2018 A1 - Brunato, Dominique A1 - De Mattei, Lorenzo A1 - Dell’Orletta, Felice A1 - Iavarone, Benedetta A1 - Venturi, Giulia JF - Proceedings of the 2018 Conference on Empirical Methods in Natural Language Processing ER -