... relation.This is easy: since part-whole is a transitive rela-tion (i.e., <A,part,B> and <B,part,C> implies<A,part,C>), we cluster the arguments by takingthe transitive closure of ... been little work on learning the IS of discourse entities. To investigate theplausibility of learning IS, Nissim et al. (2004)annotate a set of Switchboard dialogues withsuch information 2, and ... et al., 2011), an open information extraction system.6The output contains, amongother things, relation instances, each of which isrepresented as a triple, <A,rel,B>, where rel isa relation,...