diff --git a/EP/Cora_node_classification/cora.py b/EP/Cora_node_classification/cora.py
index 1eed9f8dc3a0835a6775d9f9052754f4d5a02327..c1a3d95f386e361be0cc7d7c51dc5a854769ca39 100644
--- a/EP/Cora_node_classification/cora.py
+++ b/EP/Cora_node_classification/cora.py
@@ -117,7 +117,7 @@ def write_pickle_graph_file(path_nodes="/cora_data/cora.content", path_edges="/c
     with open(path_output_graph + "graph.pkl", "wb") as output:
         pkl.dump(g, output)
 
-def read_pickle_graph(path = "graph.pkl"):
+def read_pickle_graph(path = "graph.pkl"):				#will be used on node_classification.py for accessing the graph
     with open(path, 'rb') as f:
         graph = pkl.load(f)
     return graph