docstr: Builds graph shown in the original research paper
docstr_tok: ["Builds","graph","shown","in","the","original","research","paper"]
code: def build_original_graph(self):
      """
      Builds graph shown in the original research paper
      """
      original_matrix = [
          ("1", "CB"),
          ("2", "ABC"),
          ("3", ["A", "B", "6"]),
          ("4", "ABC"),
          ("5", "AB"),
          ("6", ["5"]),
          ("A", ["6"]),
      ]
      graph = nx.Graph()
      for source, targets in original_matrix:
          for target in targets:
              graph.add_edge(source, target)
      return graph
  
imports: import pytest
  import networkx
label_desc: Use image node_id 1 for calling the TestUnDirectedDedensification obj's underlying member method code with example usage: obj.build_original_graph() and returns: graph