<｜begin▁of▁sentence｜>### Instruction:
Given a graph whose edge set is [('A', 'B'), ('A', 'C'), ('B', 'C'), ('C', 'D'), ('D', 'E'), ('E', 'F'), ('E', 'G')], compute the group degree centrality for the group of nodes ['A', 'B', 'C'] using NetworkX.
### Response:
import networkx as nx

# Create a graph
G = nx.Graph()
G.add_edges_from([('A', 'B'), ('A', 'C'), ('B', 'C'), ('C', 'D'), ('D', 'E'), ('E', 'F'), ('E', 'G')])

# Define a group of nodes
S = ['A', 'B', 'C']

# Compute the group degree centrality
centrality = nx.group_degree_centrality(G, S)

print('Group degree centrality:', centrality)
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