<｜begin▁of▁sentence｜>### Instruction:
As a network analyst, you have been provided with a dataset in GML format containing information about US political books. You are requested to utilize the LPANNI function in cdlib to analyze the community structure within this network and generate the results in JSON format.
### Response:
import networkx as nx
from cdlib import algorithms

G = nx.read_gml('polbooks.gml')

communities = algorithms.lpanni(G, threshold=0.0001)

json_result = communities.to_json()
print(json_result)
<|EOT|>
