text: import matplotlib.pyplot as plt
  import networkx as nx
  
  G = nx.Graph()
  
  acropolis = 'Acropolis'
  acropolis_museum = 'Acropolis Museum'
  national_archaeology_Museum = 'National Archaeology Museum'
  plaka = 'Pláka'
  
  G.add_nodes_from([acropolis, acropolis_museum, national_archaeology_Museum])
  
  G.add_edges_from([(acropolis, acropolis_museum), (acropolis, national_archaeology_Museum), (plaka, acropolis)])
  
  # G = nx.petersen_graph()
  
  options = {
      # 'node_color': 'black',
      # 'node_size': 120,
      'width': 3,
      'with_labels': True,
      'font_weight': 'bold',
  }
  
  plt.subplot(121)
  nx.draw(G, **options)
  
  plt.show()
  