In particular, to extract information, Clause-Based Open IE systems (Del Corro and Gemulla, 2013;Angeli et al., 2015;Schmidek and Barbosa, 2014) reduce a complex sentence into simpler sentences using linguistic patterns.
we use a pretrained Semantic Role Labelling model 4 based on a Bi-directional LSTM network (He et al., 2017) with pre-trained ELMo embeddings (Peters et al., 2018).