<｜begin▁of▁sentence｜>### Instruction:
Given the word adjacencies graph which you can read from a gml file named adjnoun.gml, can you use LPANNI community detection algorithm in cdlib to detect overlapping community structures and output the result in JSON format?
### Response:
import networkx as nx
from cdlib import algorithms

# Read the graph structure from a GML file
G = nx.read_gml('adjnoun.gml')

# Apply LPANNI community detection algorithm
communities = algorithms.lpanni(G)

# Output communities as JSON
communities_json = communities.to_json()
print(communities_json)
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