<｜begin▁of▁sentence｜>### Instruction:
As a network data analyst, you've been tasked with analyzing the connections among political books in order to understand the underlying community structures within the network. You need to use the PercoMVC function in the cdlib library to perform community detection, and then convert the detected community structure into a JSON format for further analysis. The data for the political books network is available in a GML file named polbooks.gml.
### Response:
from cdlib import algorithms
import networkx as nx

# Load the political books graph
G = nx.read_gml('polbooks.gml')

# Run the PercoMVC community detection algorithm
coms = algorithms.percomvc(G)

# Convert the community structure to JSON
coms_json = coms.to_json()

# Print the json
print(coms_json)
<|EOT|>
