graph_dict object wont preserve both neighbours of node (right side and below)  #14

graph_dict = {}
for src_id, row in df.iterrows():
    if row['below_obj_index'] != -1:
         graph_dict[src_id] = [row['below_obj_index']]
    if row['side_obj_index'] != -1:
	 graph_dict[src_id] = [row['side_obj_index']]