<｜begin▁of▁sentence｜>### Instruction:
As a retail buyer responsible for selecting and purchasing merchandise for retail stores or online retailers, you may need to analyze the structure of a supply chain network. Consider the following scenario: You have a network of suppliers, distributors, and retailers, represented as a tree graph with specific connections. In order to understand the structure of this network, you could utilize the to_prufer method in the networkx Python library to convert the graph into a Prüfer sequence. Once you have the Prüfer sequence, it can provide valuable insights for optimizing inventory management and supply chain operations.
### Response:
from igraph import Graph

# Define a tree graph with edge set
edges = [(0, 1), (1, 2), (1, 3), (3, 4), (3, 5)]

# Create the tree graph with the defined edges
g = Graph(edges=edges)

# Ensure the graph is a tree
if g.is_tree():
    # Convert the tree graph to a Prüfer sequence
    prufer_sequence = g.to_prufer()
    print(prufer_sequence)
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