<｜begin▁of▁sentence｜>### Instruction:
Given the Political blogs graph which you can read from a GML file named polblogs.gml, can you use the LFM (Local Fitness Model) community detection algorithm with a specified alpha value to find overlapping communities and the hierarchical structure? Additionally, can you convert the found communities into a JSON representation?
### Response:
import networkx as nx
from cdlib import algorithms

# Reading the Political blogs graph from a GML file
G = nx.read_gml('polblogs.gml')

# Running the LFM algorithm with a specified alpha value
communities = algorithms.lfm(G, alpha=1.0)

# Convert the communities to a JSON object
communities_json = communities.to_json()

print(communities_json)
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