Two popular datasets, SimpleQuestions (Bordes et al., 2015) and WebQuestions (Berant et al., 2013) are used in our experiments.
for a given KB K, we will denote its set of entities by E and its set of relations by R. The KB K contains a set of factual triples f in which each triple is in the form of (s, r, o), with s, o ∈ E and r ∈ R. for example, (CarlosGomez, baseball.baseballPlayer.position, Centerfielder) is one such triple taken from freebase.