<｜begin▁of▁sentence｜>### Instruction:
Given two graphs G and H where graph G has an edge set [(1, 2)] with a weight of 4, and graph H has an edge set [('a', 'b')] with a weight of 7, can you compute the lexicographic product of these two graphs using NetworkX and print out the nodes and edges of the resulting graph?
### Response:
import networkx as nx

# Create two graphs, G and H
G = nx.Graph()
H = nx.Graph()

# Add nodes and edges to G
G.add_edge(1, 2, weight=4)

# Add nodes and edges to H
H.add_edge('a', 'b', weight=7)

# Compute the lexicographic product P of G and H
P = nx.lexicographic_product(G, H)

# Print the nodes and edges of the product graph
print('Nodes of P:', list(P.nodes))
print('Edges of P:', list(P.edges))
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