Existing approaches for OIE, such as REVERB <cite>(Fader et al., 2011)</cite> , WOE (Wu and Weld, 2010) or WANDER-LUST (Akbik and Bross, 2009 ) focus on the extraction of binary facts, e.g. facts that consist of only two arguments, as well as a fact phrase which denotes the nature of the relationship between the arguments.