<｜begin▁of▁sentence｜>### Instruction:
Given a graph whose edge set is [(1, 2), (1, 3), (2, 3), (2, 4), (3, 5), (4, 5), (4, 6)], and a matching {1: 2, 3: 5, 4: 6}, can you check if the matching is a perfect matching using NetworkX?
### Response:
import networkx as nx

# Create a graph
G = nx.Graph()
G.add_edges_from([(1, 2), (1, 3), (2, 3), (2, 4), (3, 5), (4, 5), (4, 6)])

# Define a matching
my_match = {1: 2, 3: 5, 4: 6}

# Check if the matching is perfect
is_perfect = nx.is_perfect_matching(G, my_match)
print('Is the matching perfect?:', is_perfect)
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