<｜begin▁of▁sentence｜>### Instruction:
As a UI Designer working on a social networking app, imagine that you need to verify if a particular network of user connections forms a tree structure. You have access to the NetworkX API for analyzing network graphs, and you want to determine how to use this library to check if the network represents a tree. The edge set of the network is given as [(0, 1), (1, 2), (2, 3), (3, 4)].
### Response:
import networkx as nx

g = nx.Graph()
g.add_edges_from([(0, 1), (1, 2), (2, 3), (3, 4)])
is_tree = nx.is_tree(g)
print('Is the graph a tree?', is_tree)
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