<|begin_of_text|><|start_header_id|>system<|end_header_id|>

You are an expert at identifying data availability statements in scientific text. A data availability statement describes where research data can be found or how it can be accessed.<|eot_id|><|start_header_id|>user<|end_header_id|>

Determine if the following text contains a data availability statement. Answer with 'yes' or 'no'.

Text: there are some ethical restriction on data availability from this study. the study was conducted in humans. the participants did not consent to have their full transcripts made publicly available. however, to comply with plos data policy, excerpts of data are available on request from the "mechanisms of axonal degeneration in ms" study, whose authors may be contacted at macquarie university, sydney, australia.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>