<｜begin▁of▁sentence｜>### Instruction:
As a work-from-home freelancer specializing in data analysis, you have been tasked with analyzing a network of books about US politics. The graph data is stored in a file named polbooks.gml, and your goal is to detect overlapping communities and outliers using the 'lswl_plus' function from the cdlib library. Once the communities have been identified, you need to represent the community structure in JSON format for further analysis and visualization.
### Response:
from cdlib import algorithms
import networkx as nx

# Read the graph from the gml file
G = nx.read_gml('polbooks.gml')

# Use the LSWL+ algorithm to find communities with possible overlaps and outliers
coms = algorithms.lswl_plus(G, strength_type=2, merge_outliers=True, detect_overlap=False)

# Convert the community structure to JSON format
coms_json = coms.to_json()
print(coms_json)
<|EOT|>
