<｜begin▁of▁sentence｜>### Instruction:
Given two graphs G with edge set [(0, 1), (1, 2), (2, 3)] and H with edge set [('a', 'b')], how do you compute the rooted product of G and H using NetworkX with 'a' as the root in H?
### Response:
import networkx as nx

# Create graphs G and H
G = nx.Graph()
G.add_edges_from([(0, 1), (1, 2), (2, 3)])
H = nx.Graph()
H.add_node('a')
H.add_node('b')
H.add_edge('a', 'b')

# Perform a rooted product of G and H with 'a' as the root in H
R = nx.algorithms.operators.product.rooted_product(G, H, 'a')

# Print the edges of the rooted product graph
print(list(R.edges()))
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