<｜begin▁of▁sentence｜>### Instruction:
Given the Condensed Matter Collaborations 2005 graph which you can read from a GML file named cond-mat-2005.gml, can you use the mod_r function in cdlib to detect the local community structure of a certain node within the network? Additionally, can you convert the output from mod_r algorithm to a JSON format to observe the community structure?
### Response:
import networkx as nx
from cdlib import algorithms

# Load the condensed matter collaborations 2005 graph
G = nx.read_gml('cond-mat-2005.gml')

# Use the mod_r algorithm to detect the local community for a specific node
query_node = 1  # Replace with the actual node id of interest
communities = algorithms.mod_r(G, query_node)

# To examine the resulting NodeClustering object, convert it to a JSON representation
communities_json = communities.to_json()
print(communities_json)
<|EOT|>
