<|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: restrictions imposed by the kenya national bureau of statistics (knbs) prevent publication of the data. for researchers who meet the criteria for access to confidential information, knbs may release data. interested researchers may request micro level data, as was used in this study, at http://www.knbs.or.ke/index.php?option=com_visforms&view=visforms&id=1&itemid=1159. further information about the knbs data access and dissemination policy is available here: http://www.knbs.or.ke/index.php?option=com_phocadownload&view=category&download=372:knbs-data-access-and-data-dissemination-policy&id=23:policies-manuals&itemid=599.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>