<｜begin▁of▁sentence｜>### Instruction:
Given a tree graph with edge set [(0, 1), (0, 2), (0, 3), (1, 4), (1, 5), (3, 6), (3, 7)] and a specified root node 0, provide the nested tuple representation of the tree in a canonical form.
### Response:
import networkx as nx

# Create a graph representing a tree
T = nx.Graph()
T.add_edges_from([(0, 1), (0, 2), (0, 3), (1, 4), (1, 5), (3, 6), (3, 7)])

# Define the root of the tree
root = 0

# Convert the tree to a nested tuple
nested_tuple = nx.to_nested_tuple(T, root, canonical_form=True)

print(nested_tuple)
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