This availability of annotated data in English has translated into the development of a plethora of models, including encoder-decoders (Dong and Lapata, 2016; Jia and Liang, 2016) as well as tree or graph-structured decoders Lapata, 2016, 2018;<cite> Liu et al., 2018</cite>; Yin and Neubig, 2017) .