In recent years, temporal processing has gained increasing attention within the NLP community, in particular since TempEval evaluation campaigns have been organized on this topic (Verhagen et al., 2007;Verhagen et al., 2010;UzZaman et al., 2013).
the classification of temporal relations holding between entities such as events and temporal expressions (timex) is crucial to build event timelines and to reconstruct the plot of a story.