<｜begin▁of▁sentence｜>### Instruction:
Given a networkx erdos_renyi_graph with params n=100, p=0.15, can you use NonBackTrackingRandomWalkSampler to sample a subgraph which has 50 nodes and check the sampled graph is biconnected or not ?
### Response:
import networkx as nx
from littleballoffur import NonBackTrackingRandomWalkSampler

G = nx.erdos_renyi_graph(100, 0.15)

sampler = NonBackTrackingRandomWalkSampler(50)

sampler_G = sampler.sample(G)

result = nx.is_biconnected(sampler_G)

print(result)
<|EOT|>
