<｜begin▁of▁sentence｜>### Instruction:
Given two graphs G and H where their node sets are {0} with an attribute 'a1=True' in G, and {'a'} with an attribute 'a2="Spam"' in H, can you create a new graph that is the Cartesian product of G and H and list its nodes and edges using NetworkX?
### Response:
import networkx as nx

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

# Add nodes and attributes to G
G.add_node(0, a1=True)

# Add nodes and attributes to H
H.add_node("a", a2="Spam")

# Compute the Cartesian product of G and H
P = nx.cartesian_product(G, H)

# Print the nodes of the Cartesian product graph
print(list(P.nodes()))

# Print the edges of the Cartesian product graph (if any)
print(list(P.edges()))
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