<｜begin▁of▁sentence｜>### Instruction:
Given a complete graph with five nodes created using NetworkX, how can you compute the number of triangles that include node 0 as one vertex, the number of triangles for all nodes in the graph, and the number of triangles for a subset of nodes (specifically nodes 0 and 1)?
### Response:
import networkx as nx

# Create a complete graph with five nodes
G = nx.complete_graph(5)

# Calculate the number of triangles that include node 0 as one vertex
triangles_node_0 = nx.triangles(G, 0)
print(f'Number of triangles including node 0: {triangles_node_0}')

# Calculate the number of triangles for all nodes in the graph
all_triangles = nx.triangles(G)
print('Number of triangles for each node:', all_triangles)

# Calculate the number of triangles for a subset of nodes
subset_triangles = nx.triangles(G, [0, 1])
print('Number of triangles for nodes 0 and 1:', subset_triangles)
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