5-pipeline-e2e.ipynb failed CI

Link to the notebook:
https://github.com/aws/amazon-sagemaker-examples/blob/master/end_to_end/5-pipeline-e2e.ipynb

Error:

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Exception encountered at "In [5]":
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NameError Traceback (most recent call last)
in
1 #======> Tons of output_paths
2
----> 3 training_job_output_path = f's3://{bucket}/{prefix}/training_jobs'
4 bias_report_output_path = f's3://{bucket}/{prefix}/clarify-bias'
5 explainability_output_path = f's3://{bucket}/{prefix}/clarify-explainability'

NameError: name 'bucket' is not defined

Open end_to_end/5-pipeline-e2e.ipynb and inspect the cells before In [5] to determine why bucket is unavailable when the output paths are assembled. Run the notebook or its CI check after the correction and confirm that this cell completes without the reported NameError.

Written by the indexing model from the issue text.