Moreover, several recent studies have shown empirically that the advantages of distinct compositional functions are highly dependent on the specific task (Mitchell and Lapata, 2010;Iyyer et al., 2015;Zhang et al., 2015a;Wieting et al., 2015;Arora et al., 2016).
it is of interest to study the practical value of the additional expressiveness, on a wide variety of NLP problems.