Consider a repository of scientific articles containing articles published in various types of venues. You want to create a heterogeneous network containing three types of objects corresponding to articles, venues, and authors. Propose the various relationship types that you can construct from this heterogeneous information network. Suppose that you had additional information about authors and venues corresponding to their subject matter (which is hierarchically classified). Discuss how you can use this information to create an ontology to support the lower level instances in the knowledge graph.