<|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: data are formulated from a combination of the both the ccc study and the yc study and ethically restricted from public sharing in accordance with special child protection and hiv protection provisions. the ccc data used within this study are available via prevention research in community, family and child health (www.preventionresearch.org.za). data from the yc study are available from uk data archive (https://discover.ukdataservice.ac.uk/catalogue/?sn=851277&type=data%20catalogue). access enquiries should be addressed to l.sherr@ucl.ac.uk.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>